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Finding the Fourth Proportional to 528,958.91, 730,149.54 and 314,097.40

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Solution

The fourth proportional to 528,958.91, 730,149.54 and 314,097.40 is: 433,565.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,958.91 : 730,149.54 = 314,097.40 : x
  2. Step 2: Convert to fraction form
    528,958.91/730,149.54 = 314,097.40/x
  3. Step 3: Cross multiply
    528,958.91x = 730,149.54 × 314,097.40
  4. Step 4: Simplify right side
    528,958.91x = 229,338,069,519.72
  5. Step 5: Solve for x
    x = 229,338,069,519.72/528,958.91
  6. Step 6: Final answer
    x = 433,565.00

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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.