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Finding the Fourth Proportional to 584,005.60, 876,008.40 and 395,999.20

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Solution

The fourth proportional to 584,005.60, 876,008.40 and 395,999.20 is: 593,998.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,005.60 : 876,008.40 = 395,999.20 : x
  2. Step 2: Convert to fraction form
    584,005.60/876,008.40 = 395,999.20/x
  3. Step 3: Cross multiply
    584,005.60x = 876,008.40 × 395,999.20
  4. Step 4: Simplify right side
    584,005.60x = 346,898,625,593.28
  5. Step 5: Solve for x
    x = 346,898,625,593.28/584,005.60
  6. Step 6: Final answer
    x = 593,998.80

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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.