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Finding the Fourth Proportional to 508,624.90, 761,171.37 and 316,420.42

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Solution

The fourth proportional to 508,624.90, 761,171.37 and 316,420.42 is: 473,532.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,624.90 : 761,171.37 = 316,420.42 : x
  2. Step 2: Convert to fraction form
    508,624.90/761,171.37 = 316,420.42/x
  3. Step 3: Cross multiply
    508,624.90x = 761,171.37 × 316,420.42
  4. Step 4: Simplify right side
    508,624.90x = 240,850,164,587.38
  5. Step 5: Solve for x
    x = 240,850,164,587.38/508,624.90
  6. Step 6: Final answer
    x = 473,532.00

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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.