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Finding the Fourth Proportional to 534,700.28, 738,001.86 and 319,888.28

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Solution

The fourth proportional to 534,700.28, 738,001.86 and 319,888.28 is: 441,514.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,700.28 : 738,001.86 = 319,888.28 : x
  2. Step 2: Convert to fraction form
    534,700.28/738,001.86 = 319,888.28/x
  3. Step 3: Cross multiply
    534,700.28x = 738,001.86 × 319,888.28
  4. Step 4: Simplify right side
    534,700.28x = 236,078,145,632.20
  5. Step 5: Solve for x
    x = 236,078,145,632.20/534,700.28
  6. Step 6: Final answer
    x = 441,514.91

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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.