Home / 528,591.20-729,456.36-286,873.82

Finding the Fourth Proportional to 528,591.20, 729,456.36 and 286,873.82

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Solution

The fourth proportional to 528,591.20, 729,456.36 and 286,873.82 is: 395,886.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,591.20 : 729,456.36 = 286,873.82 : x
  2. Step 2: Convert to fraction form
    528,591.20/729,456.36 = 286,873.82/x
  3. Step 3: Cross multiply
    528,591.20x = 729,456.36 × 286,873.82
  4. Step 4: Simplify right side
    528,591.20x = 209,261,932,516.50
  5. Step 5: Solve for x
    x = 209,261,932,516.50/528,591.20
  6. Step 6: Final answer
    x = 395,886.15

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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.