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Finding the Fourth Proportional to 724,897,266.35, 1,087,345,899.53 and 724,897,266.35

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Solution

The fourth proportional to 724,897,266.35, 1,087,345,899.53 and 724,897,266.35 is: 1,087,345,899.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,897,266.35 : 1,087,345,899.53 = 724,897,266.35 : x
  2. Step 2: Convert to fraction form
    724,897,266.35/1,087,345,899.53 = 724,897,266.35/x
  3. Step 3: Cross multiply
    724,897,266.35x = 1,087,345,899.53 × 724,897,266.35
  4. Step 4: Simplify right side
    724,897,266.35x = 788,214,070,146,178,816
  5. Step 5: Solve for x
    x = 788,214,070,146,178,816/724,897,266.35
  6. Step 6: Final answer
    x = 1,087,345,899.53

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.