Home / 719,255.49-992,567.70-396,965.59

Finding the Fourth Proportional to 719,255.49, 992,567.70 and 396,965.59

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Solution

The fourth proportional to 719,255.49, 992,567.70 and 396,965.59 is: 547,809.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,255.49 : 992,567.70 = 396,965.59 : x
  2. Step 2: Convert to fraction form
    719,255.49/992,567.70 = 396,965.59/x
  3. Step 3: Cross multiply
    719,255.49x = 992,567.70 × 396,965.59
  4. Step 4: Simplify right side
    719,255.49x = 394,015,220,966.78
  5. Step 5: Solve for x
    x = 394,015,220,966.78/719,255.49
  6. Step 6: Final answer
    x = 547,809.82

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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.