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Finding the Fourth Proportional to 576,463.80, 862,362.90 and 506,479.80

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Solution

The fourth proportional to 576,463.80, 862,362.90 and 506,479.80 is: 757,670.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,463.80 : 862,362.90 = 506,479.80 : x
  2. Step 2: Convert to fraction form
    576,463.80/862,362.90 = 506,479.80/x
  3. Step 3: Cross multiply
    576,463.80x = 862,362.90 × 506,479.80
  4. Step 4: Simplify right side
    576,463.80x = 436,769,389,119.42
  5. Step 5: Solve for x
    x = 436,769,389,119.42/576,463.80
  6. Step 6: Final answer
    x = 757,670.11

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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.