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Finding the Fourth Proportional to 619,356.60, 929,034.90 and 524,878.20

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Solution

The fourth proportional to 619,356.60, 929,034.90 and 524,878.20 is: 787,317.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,356.60 : 929,034.90 = 524,878.20 : x
  2. Step 2: Convert to fraction form
    619,356.60/929,034.90 = 524,878.20/x
  3. Step 3: Cross multiply
    619,356.60x = 929,034.90 × 524,878.20
  4. Step 4: Simplify right side
    619,356.60x = 487,630,166,049.18
  5. Step 5: Solve for x
    x = 487,630,166,049.18/619,356.60
  6. Step 6: Final answer
    x = 787,317.30

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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.