Home / 539,789.04-805,319.10-485,983.98

Finding the Fourth Proportional to 539,789.04, 805,319.10 and 485,983.98

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Solution

The fourth proportional to 539,789.04, 805,319.10 and 485,983.98 is: 725,046.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,789.04 : 805,319.10 = 485,983.98 : x
  2. Step 2: Convert to fraction form
    539,789.04/805,319.10 = 485,983.98/x
  3. Step 3: Cross multiply
    539,789.04x = 805,319.10 × 485,983.98
  4. Step 4: Simplify right side
    539,789.04x = 391,372,181,388.02
  5. Step 5: Solve for x
    x = 391,372,181,388.02/539,789.04
  6. Step 6: Final answer
    x = 725,046.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.