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Finding the Fourth Proportional to 372,462.36, 514,106.37 and 243,420.25

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Solution

The fourth proportional to 372,462.36, 514,106.37 and 243,420.25 is: 335,990.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,462.36 : 514,106.37 = 243,420.25 : x
  2. Step 2: Convert to fraction form
    372,462.36/514,106.37 = 243,420.25/x
  3. Step 3: Cross multiply
    372,462.36x = 514,106.37 × 243,420.25
  4. Step 4: Simplify right side
    372,462.36x = 125,143,897,932.91
  5. Step 5: Solve for x
    x = 125,143,897,932.91/372,462.36
  6. Step 6: Final answer
    x = 335,990.72

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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.