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Finding the Fourth Proportional to 576,461.80, 862,359.90 and 506,477.80

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Solution

The fourth proportional to 576,461.80, 862,359.90 and 506,477.80 is: 757,667.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,461.80 : 862,359.90 = 506,477.80 : x
  2. Step 2: Convert to fraction form
    576,461.80/862,359.90 = 506,477.80/x
  3. Step 3: Cross multiply
    576,461.80x = 862,359.90 × 506,477.80
  4. Step 4: Simplify right side
    576,461.80x = 436,766,144,960.22
  5. Step 5: Solve for x
    x = 436,766,144,960.22/576,461.80
  6. Step 6: Final answer
    x = 757,667.11

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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.