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Finding the Fourth Proportional to 424,720.95, 586,048.01 and 243,398.00

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Solution

The fourth proportional to 424,720.95, 586,048.01 and 243,398.00 is: 335,850.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,720.95 : 586,048.01 = 243,398.00 : x
  2. Step 2: Convert to fraction form
    424,720.95/586,048.01 = 243,398.00/x
  3. Step 3: Cross multiply
    424,720.95x = 586,048.01 × 243,398.00
  4. Step 4: Simplify right side
    424,720.95x = 142,642,909,390.75
  5. Step 5: Solve for x
    x = 142,642,909,390.75/424,720.95
  6. Step 6: Final answer
    x = 335,850.89

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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.