Home / 927,149.51-1,279,320.17-540,028.64

Finding the Fourth Proportional to 927,149.51, 1,279,320.17 and 540,028.64

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Solution

The fourth proportional to 927,149.51, 1,279,320.17 and 540,028.64 is: 745,154.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    927,149.51 : 1,279,320.17 = 540,028.64 : x
  2. Step 2: Convert to fraction form
    927,149.51/1,279,320.17 = 540,028.64/x
  3. Step 3: Cross multiply
    927,149.51x = 1,279,320.17 × 540,028.64
  4. Step 4: Simplify right side
    927,149.51x = 690,869,526,483.14
  5. Step 5: Solve for x
    x = 690,869,526,483.14/927,149.51
  6. Step 6: Final answer
    x = 745,154.39

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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.