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Finding the Fourth Proportional to 372,441.60, 559,828.80 and 365,443.20

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Solution

The fourth proportional to 372,441.60, 559,828.80 and 365,443.20 is: 549,309.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,441.60 : 559,828.80 = 365,443.20 : x
  2. Step 2: Convert to fraction form
    372,441.60/559,828.80 = 365,443.20/x
  3. Step 3: Cross multiply
    372,441.60x = 559,828.80 × 365,443.20
  4. Step 4: Simplify right side
    372,441.60x = 204,585,628,124.16
  5. Step 5: Solve for x
    x = 204,585,628,124.16/372,441.60
  6. Step 6: Final answer
    x = 549,309.28

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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.