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Finding the Fourth Proportional to 253,712,237.10, 354,431,856.90 and 253,712,237.10

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Solution

The fourth proportional to 253,712,237.10, 354,431,856.90 and 253,712,237.10 is: 354,431,856.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,712,237.10 : 354,431,856.90 = 253,712,237.10 : x
  2. Step 2: Convert to fraction form
    253,712,237.10/354,431,856.90 = 253,712,237.10/x
  3. Step 3: Cross multiply
    253,712,237.10x = 354,431,856.90 × 253,712,237.10
  4. Step 4: Simplify right side
    253,712,237.10x = 89,923,699,313,606,064
  5. Step 5: Solve for x
    x = 89,923,699,313,606,064/253,712,237.10
  6. Step 6: Final answer
    x = 354,431,856.90

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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.