Home / 528,639.89-792,952.95-129,284.12

Finding the Fourth Proportional to 528,639.89, 792,952.95 and 129,284.12

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Solution

The fourth proportional to 528,639.89, 792,952.95 and 129,284.12 is: 193,924.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,639.89 : 792,952.95 = 129,284.12 : x
  2. Step 2: Convert to fraction form
    528,639.89/792,952.95 = 129,284.12/x
  3. Step 3: Cross multiply
    528,639.89x = 792,952.95 × 129,284.12
  4. Step 4: Simplify right side
    528,639.89x = 102,516,220,377.39
  5. Step 5: Solve for x
    x = 102,516,220,377.39/528,639.89
  6. Step 6: Final answer
    x = 193,924.49

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Similar ratio
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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.