Home / 927,403.96-1,279,830.78-540,209.50

Finding the Fourth Proportional to 927,403.96, 1,279,830.78 and 540,209.50

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Solution

The fourth proportional to 927,403.96, 1,279,830.78 and 540,209.50 is: 745,496.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    927,403.96 : 1,279,830.78 = 540,209.50 : x
  2. Step 2: Convert to fraction form
    927,403.96/1,279,830.78 = 540,209.50/x
  3. Step 3: Cross multiply
    927,403.96x = 1,279,830.78 × 540,209.50
  4. Step 4: Simplify right side
    927,403.96x = 691,376,745,748.41
  5. Step 5: Solve for x
    x = 691,376,745,748.41/927,403.96
  6. Step 6: Final answer
    x = 745,496.87

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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.