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Finding the Fourth Proportional to 587,239.80, 880,859.70 and 508,507.80

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Solution

The fourth proportional to 587,239.80, 880,859.70 and 508,507.80 is: 762,761.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,239.80 : 880,859.70 = 508,507.80 : x
  2. Step 2: Convert to fraction form
    587,239.80/880,859.70 = 508,507.80/x
  3. Step 3: Cross multiply
    587,239.80x = 880,859.70 × 508,507.80
  4. Step 4: Simplify right side
    587,239.80x = 447,924,028,155.66
  5. Step 5: Solve for x
    x = 447,924,028,155.66/587,239.80
  6. Step 6: Final answer
    x = 762,761.70

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Similar ratio
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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.