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Finding the Fourth Proportional to 582,677.60, 874,016.40 and 346,287.20

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Solution

The fourth proportional to 582,677.60, 874,016.40 and 346,287.20 is: 519,430.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    582,677.60 : 874,016.40 = 346,287.20 : x
  2. Step 2: Convert to fraction form
    582,677.60/874,016.40 = 346,287.20/x
  3. Step 3: Cross multiply
    582,677.60x = 874,016.40 × 346,287.20
  4. Step 4: Simplify right side
    582,677.60x = 302,660,691,910.08
  5. Step 5: Solve for x
    x = 302,660,691,910.08/582,677.60
  6. Step 6: Final answer
    x = 519,430.80

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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.