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Finding the Fourth Proportional to 524,816.80, 787,225.20 and 484,266.40

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Solution

The fourth proportional to 524,816.80, 787,225.20 and 484,266.40 is: 726,399.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,816.80 : 787,225.20 = 484,266.40 : x
  2. Step 2: Convert to fraction form
    524,816.80/787,225.20 = 484,266.40/x
  3. Step 3: Cross multiply
    524,816.80x = 787,225.20 × 484,266.40
  4. Step 4: Simplify right side
    524,816.80x = 381,226,713,593.28
  5. Step 5: Solve for x
    x = 381,226,713,593.28/524,816.80
  6. Step 6: Final answer
    x = 726,399.60

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Double scale
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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.