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Finding the Fourth Proportional to 572,617.60, 858,926.40 and 520,086.40

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Solution

The fourth proportional to 572,617.60, 858,926.40 and 520,086.40 is: 780,129.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,617.60 : 858,926.40 = 520,086.40 : x
  2. Step 2: Convert to fraction form
    572,617.60/858,926.40 = 520,086.40/x
  3. Step 3: Cross multiply
    572,617.60x = 858,926.40 × 520,086.40
  4. Step 4: Simplify right side
    572,617.60x = 446,715,939,240.96
  5. Step 5: Solve for x
    x = 446,715,939,240.96/572,617.60
  6. Step 6: Final answer
    x = 780,129.60

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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.