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Finding the Fourth Proportional to 561,513,000.10, 842,269,500.15 and 561,513,000.10

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Solution

The fourth proportional to 561,513,000.10, 842,269,500.15 and 561,513,000.10 is: 842,269,500.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,513,000.10 : 842,269,500.15 = 561,513,000.10 : x
  2. Step 2: Convert to fraction form
    561,513,000.10/842,269,500.15 = 561,513,000.10/x
  3. Step 3: Cross multiply
    561,513,000.10x = 842,269,500.15 × 561,513,000.10
  4. Step 4: Simplify right side
    561,513,000.10x = 472,945,273,921,953,920
  5. Step 5: Solve for x
    x = 472,945,273,921,953,920/561,513,000.10
  6. Step 6: Final answer
    x = 842,269,500.15

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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.