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Finding the Fourth Proportional to 801,717,801.30, 1,123,935,471.90 and 801,717,801.30

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Solution

The fourth proportional to 801,717,801.30, 1,123,935,471.90 and 801,717,801.30 is: 1,123,935,471.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    801,717,801.30 : 1,123,935,471.90 = 801,717,801.30 : x
  2. Step 2: Convert to fraction form
    801,717,801.30/1,123,935,471.90 = 801,717,801.30/x
  3. Step 3: Cross multiply
    801,717,801.30x = 1,123,935,471.90 × 801,717,801.30
  4. Step 4: Simplify right side
    801,717,801.30x = 901,079,075,334,745,984
  5. Step 5: Solve for x
    x = 901,079,075,334,745,984/801,717,801.30
  6. Step 6: Final answer
    x = 1,123,935,471.90

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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.