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Finding the Fourth Proportional to 1,229,461,905.03, 1,696,670,890.23 and 672,544,957.56

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Solution

The fourth proportional to 1,229,461,905.03, 1,696,670,890.23 and 672,544,957.56 is: 928,119,405.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,229,461,905.03 : 1,696,670,890.23 = 672,544,957.56 : x
  2. Step 2: Convert to fraction form
    1,229,461,905.03/1,696,670,890.23 = 672,544,957.56/x
  3. Step 3: Cross multiply
    1,229,461,905.03x = 1,696,670,890.23 × 672,544,957.56
  4. Step 4: Simplify right side
    1,229,461,905.03x = 1,141,087,451,863,022,720
  5. Step 5: Solve for x
    x = 1,141,087,451,863,022,720/1,229,461,905.03
  6. Step 6: Final answer
    x = 928,119,405.08

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.