Home / 927,639.96-1,280,120.82-519,759

Finding the Fourth Proportional to 927,639.96, 1,280,120.82 and 519,759

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Solution

The fourth proportional to 927,639.96, 1,280,120.82 and 519,759 is: 717,254.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    927,639.96 : 1,280,120.82 = 519,759 : x
  2. Step 2: Convert to fraction form
    927,639.96/1,280,120.82 = 519,759/x
  3. Step 3: Cross multiply
    927,639.96x = 1,280,120.82 × 519,759
  4. Step 4: Simplify right side
    927,639.96x = 665,354,317,282.38
  5. Step 5: Solve for x
    x = 665,354,317,282.38/927,639.96
  6. Step 6: Final answer
    x = 717,254.91

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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.