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Finding the Fourth Proportional to 524,666.80, 787,000.20 and 325,601.20

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Solution

The fourth proportional to 524,666.80, 787,000.20 and 325,601.20 is: 488,401.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,666.80 : 787,000.20 = 325,601.20 : x
  2. Step 2: Convert to fraction form
    524,666.80/787,000.20 = 325,601.20/x
  3. Step 3: Cross multiply
    524,666.80x = 787,000.20 × 325,601.20
  4. Step 4: Simplify right side
    524,666.80x = 256,248,209,520.24
  5. Step 5: Solve for x
    x = 256,248,209,520.24/524,666.80
  6. Step 6: Final answer
    x = 488,401.80

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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.