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Finding the Fourth Proportional to 464,089.13, 696,134.31 and 127,132.78

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Solution

The fourth proportional to 464,089.13, 696,134.31 and 127,132.78 is: 190,699.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,089.13 : 696,134.31 = 127,132.78 : x
  2. Step 2: Convert to fraction form
    464,089.13/696,134.31 = 127,132.78/x
  3. Step 3: Cross multiply
    464,089.13x = 696,134.31 × 127,132.78
  4. Step 4: Simplify right side
    464,089.13x = 88,501,485,967.35
  5. Step 5: Solve for x
    x = 88,501,485,967.35/464,089.13
  6. Step 6: Final answer
    x = 190,699.33

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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.