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Finding the Fourth Proportional to 704,414,962.40, 988,221,680.80 and 704,414,962.40

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Solution

The fourth proportional to 704,414,962.40, 988,221,680.80 and 704,414,962.40 is: 988,221,680.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,414,962.40 : 988,221,680.80 = 704,414,962.40 : x
  2. Step 2: Convert to fraction form
    704,414,962.40/988,221,680.80 = 704,414,962.40/x
  3. Step 3: Cross multiply
    704,414,962.40x = 988,221,680.80 × 704,414,962.40
  4. Step 4: Simplify right side
    704,414,962.40x = 696,118,138,123,596,800
  5. Step 5: Solve for x
    x = 696,118,138,123,596,800/704,414,962.40
  6. Step 6: Final answer
    x = 988,221,680.80

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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.