Home / 927,005.20-1,390,661.40-394,781.20

Finding the Fourth Proportional to 927,005.20, 1,390,661.40 and 394,781.20

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Solution

The fourth proportional to 927,005.20, 1,390,661.40 and 394,781.20 is: 592,237.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    927,005.20 : 1,390,661.40 = 394,781.20 : x
  2. Step 2: Convert to fraction form
    927,005.20/1,390,661.40 = 394,781.20/x
  3. Step 3: Cross multiply
    927,005.20x = 1,390,661.40 × 394,781.20
  4. Step 4: Simplify right side
    927,005.20x = 549,006,976,285.68
  5. Step 5: Solve for x
    x = 549,006,976,285.68/927,005.20
  6. Step 6: Final answer
    x = 592,237.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.