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Finding the Fourth Proportional to 619,358.60, 929,037.90 and 524,880.20

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Solution

The fourth proportional to 619,358.60, 929,037.90 and 524,880.20 is: 787,320.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,358.60 : 929,037.90 = 524,880.20 : x
  2. Step 2: Convert to fraction form
    619,358.60/929,037.90 = 524,880.20/x
  3. Step 3: Cross multiply
    619,358.60x = 929,037.90 × 524,880.20
  4. Step 4: Simplify right side
    619,358.60x = 487,633,598,759.58
  5. Step 5: Solve for x
    x = 487,633,598,759.58/619,358.60
  6. Step 6: Final answer
    x = 787,320.30

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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.