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Finding the Fourth Proportional to 530,327.74, 732,102.51 and 339,451.78

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Solution

The fourth proportional to 530,327.74, 732,102.51 and 339,451.78 is: 468,603.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,327.74 : 732,102.51 = 339,451.78 : x
  2. Step 2: Convert to fraction form
    530,327.74/732,102.51 = 339,451.78/x
  3. Step 3: Cross multiply
    530,327.74x = 732,102.51 × 339,451.78
  4. Step 4: Simplify right side
    530,327.74x = 248,513,500,161.97
  5. Step 5: Solve for x
    x = 248,513,500,161.97/530,327.74
  6. Step 6: Final answer
    x = 468,603.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.