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Finding the Fourth Proportional to 439,001.06, 605,809.07 and 257,710.10

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Solution

The fourth proportional to 439,001.06, 605,809.07 and 257,710.10 is: 355,632.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,001.06 : 605,809.07 = 257,710.10 : x
  2. Step 2: Convert to fraction form
    439,001.06/605,809.07 = 257,710.10/x
  3. Step 3: Cross multiply
    439,001.06x = 605,809.07 × 257,710.10
  4. Step 4: Simplify right side
    439,001.06x = 156,123,111,693.01
  5. Step 5: Solve for x
    x = 156,123,111,693.01/439,001.06
  6. Step 6: Final answer
    x = 355,632.66

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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.