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Finding the Fourth Proportional to 659,210.31, 909,728.15 and 372,773.25

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Solution

The fourth proportional to 659,210.31, 909,728.15 and 372,773.25 is: 514,437.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,210.31 : 909,728.15 = 372,773.25 : x
  2. Step 2: Convert to fraction form
    659,210.31/909,728.15 = 372,773.25/x
  3. Step 3: Cross multiply
    659,210.31x = 909,728.15 × 372,773.25
  4. Step 4: Simplify right side
    659,210.31x = 339,122,317,228.12
  5. Step 5: Solve for x
    x = 339,122,317,228.12/659,210.31
  6. Step 6: Final answer
    x = 514,437.22

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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.