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Finding the Fourth Proportional to 523,391.60, 785,087.40 and 346,098.80

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Solution

The fourth proportional to 523,391.60, 785,087.40 and 346,098.80 is: 519,148.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,391.60 : 785,087.40 = 346,098.80 : x
  2. Step 2: Convert to fraction form
    523,391.60/785,087.40 = 346,098.80/x
  3. Step 3: Cross multiply
    523,391.60x = 785,087.40 × 346,098.80
  4. Step 4: Simplify right side
    523,391.60x = 271,717,807,035.12
  5. Step 5: Solve for x
    x = 271,717,807,035.12/523,391.60
  6. Step 6: Final answer
    x = 519,148.20

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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.