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Finding the Fourth Proportional to 372,840.75, 514,150.83 and 229,572.90

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Solution

The fourth proportional to 372,840.75, 514,150.83 and 229,572.90 is: 316,583.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,840.75 : 514,150.83 = 229,572.90 : x
  2. Step 2: Convert to fraction form
    372,840.75/514,150.83 = 229,572.90/x
  3. Step 3: Cross multiply
    372,840.75x = 514,150.83 × 229,572.90
  4. Step 4: Simplify right side
    372,840.75x = 118,035,097,080.51
  5. Step 5: Solve for x
    x = 118,035,097,080.51/372,840.75
  6. Step 6: Final answer
    x = 316,583.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.