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Finding the Fourth Proportional to 372,210.60, 558,315.90 and 354,714.60

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Solution

The fourth proportional to 372,210.60, 558,315.90 and 354,714.60 is: 532,071.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,210.60 : 558,315.90 = 354,714.60 : x
  2. Step 2: Convert to fraction form
    372,210.60/558,315.90 = 354,714.60/x
  3. Step 3: Cross multiply
    372,210.60x = 558,315.90 × 354,714.60
  4. Step 4: Simplify right side
    372,210.60x = 198,042,801,142.14
  5. Step 5: Solve for x
    x = 198,042,801,142.14/372,210.60
  6. Step 6: Final answer
    x = 532,071.90

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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.