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Finding the Fourth Proportional to 347,998.71, 521,978.85 and 95,260.89

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Solution

The fourth proportional to 347,998.71, 521,978.85 and 95,260.89 is: 142,886.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,998.71 : 521,978.85 = 95,260.89 : x
  2. Step 2: Convert to fraction form
    347,998.71/521,978.85 = 95,260.89/x
  3. Step 3: Cross multiply
    347,998.71x = 521,978.85 × 95,260.89
  4. Step 4: Simplify right side
    347,998.71x = 49,724,169,812.18
  5. Step 5: Solve for x
    x = 49,724,169,812.18/347,998.71
  6. Step 6: Final answer
    x = 142,886.08

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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.