Home / 535,786.98-803,520.08-215,836.18

Finding the Fourth Proportional to 535,786.98, 803,520.08 and 215,836.18

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Solution

The fourth proportional to 535,786.98, 803,520.08 and 215,836.18 is: 323,689.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,786.98 : 803,520.08 = 215,836.18 : x
  2. Step 2: Convert to fraction form
    535,786.98/803,520.08 = 215,836.18/x
  3. Step 3: Cross multiply
    535,786.98x = 803,520.08 × 215,836.18
  4. Step 4: Simplify right side
    535,786.98x = 173,428,704,620.49
  5. Step 5: Solve for x
    x = 173,428,704,620.49/535,786.98
  6. Step 6: Final answer
    x = 323,689.66

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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.