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Finding the Fourth Proportional to 372,991.02, 514,720.62 and 207,429.13

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Solution

The fourth proportional to 372,991.02, 514,720.62 and 207,429.13 is: 286,248.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,991.02 : 514,720.62 = 207,429.13 : x
  2. Step 2: Convert to fraction form
    372,991.02/514,720.62 = 207,429.13/x
  3. Step 3: Cross multiply
    372,991.02x = 514,720.62 × 207,429.13
  4. Step 4: Simplify right side
    372,991.02x = 106,768,050,399.66
  5. Step 5: Solve for x
    x = 106,768,050,399.66/372,991.02
  6. Step 6: Final answer
    x = 286,248.31

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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.