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Finding the Fourth Proportional to 508,010.20, 761,237.70 and 480,016.60

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Solution

The fourth proportional to 508,010.20, 761,237.70 and 480,016.60 is: 719,290.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,010.20 : 761,237.70 = 480,016.60 : x
  2. Step 2: Convert to fraction form
    508,010.20/761,237.70 = 480,016.60/x
  3. Step 3: Cross multiply
    508,010.20x = 761,237.70 × 480,016.60
  4. Step 4: Simplify right side
    508,010.20x = 365,406,732,545.82
  5. Step 5: Solve for x
    x = 365,406,732,545.82/508,010.20
  6. Step 6: Final answer
    x = 719,290.15

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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.