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Finding the Fourth Proportional to 709,893,518.08, 1,064,861,970 and 243,548,400.28

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Solution

The fourth proportional to 709,893,518.08, 1,064,861,970 and 243,548,400.28 is: 365,330,042.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,893,518.08 : 1,064,861,970 = 243,548,400.28 : x
  2. Step 2: Convert to fraction form
    709,893,518.08/1,064,861,970 = 243,548,400.28/x
  3. Step 3: Cross multiply
    709,893,518.08x = 1,064,861,970 × 243,548,400.28
  4. Step 4: Simplify right side
    709,893,518.08x = 259,345,429,312,509,344
  5. Step 5: Solve for x
    x = 259,345,429,312,509,344/709,893,518.08
  6. Step 6: Final answer
    x = 365,330,042.76

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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.