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Finding the Fourth Proportional to 672,225.40, 941,815.40 and 672,225.40

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Solution

The fourth proportional to 672,225.40, 941,815.40 and 672,225.40 is: 941,815.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,225.40 : 941,815.40 = 672,225.40 : x
  2. Step 2: Convert to fraction form
    672,225.40/941,815.40 = 672,225.40/x
  3. Step 3: Cross multiply
    672,225.40x = 941,815.40 × 672,225.40
  4. Step 4: Simplify right side
    672,225.40x = 633,112,233,991.16
  5. Step 5: Solve for x
    x = 633,112,233,991.16/672,225.40
  6. Step 6: Final answer
    x = 941,815.40

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.