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Finding the Fourth Proportional to 215,812,598.30, 323,718,897.45 and 215,812,598.30

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Solution

The fourth proportional to 215,812,598.30, 323,718,897.45 and 215,812,598.30 is: 323,718,897.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,812,598.30 : 323,718,897.45 = 215,812,598.30 : x
  2. Step 2: Convert to fraction form
    215,812,598.30/323,718,897.45 = 215,812,598.30/x
  3. Step 3: Cross multiply
    215,812,598.30x = 323,718,897.45 × 215,812,598.30
  4. Step 4: Simplify right side
    215,812,598.30x = 69,862,616,377,495,744
  5. Step 5: Solve for x
    x = 69,862,616,377,495,744/215,812,598.30
  6. Step 6: Final answer
    x = 323,718,897.45

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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.