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Finding the Fourth Proportional to 524,815.80, 787,223.70 and 484,265.40

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Solution

The fourth proportional to 524,815.80, 787,223.70 and 484,265.40 is: 726,398.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,815.80 : 787,223.70 = 484,265.40 : x
  2. Step 2: Convert to fraction form
    524,815.80/787,223.70 = 484,265.40/x
  3. Step 3: Cross multiply
    524,815.80x = 787,223.70 × 484,265.40
  4. Step 4: Simplify right side
    524,815.80x = 381,225,199,969.98
  5. Step 5: Solve for x
    x = 381,225,199,969.98/524,815.80
  6. Step 6: Final answer
    x = 726,398.10

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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.