Home / 287,528.61-396,780.33-180,156.63

Finding the Fourth Proportional to 287,528.61, 396,780.33 and 180,156.63

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Solution

The fourth proportional to 287,528.61, 396,780.33 and 180,156.63 is: 248,610.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,528.61 : 396,780.33 = 180,156.63 : x
  2. Step 2: Convert to fraction form
    287,528.61/396,780.33 = 180,156.63/x
  3. Step 3: Cross multiply
    287,528.61x = 396,780.33 × 180,156.63
  4. Step 4: Simplify right side
    287,528.61x = 71,482,607,103.09
  5. Step 5: Solve for x
    x = 71,482,607,103.09/287,528.61
  6. Step 6: Final answer
    x = 248,610.42

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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.