Home / 862,387.98-1,190,237.13-480,537.78

Finding the Fourth Proportional to 862,387.98, 1,190,237.13 and 480,537.78

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Solution

The fourth proportional to 862,387.98, 1,190,237.13 and 480,537.78 is: 663,221.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,387.98 : 1,190,237.13 = 480,537.78 : x
  2. Step 2: Convert to fraction form
    862,387.98/1,190,237.13 = 480,537.78/x
  3. Step 3: Cross multiply
    862,387.98x = 1,190,237.13 × 480,537.78
  4. Step 4: Simplify right side
    862,387.98x = 571,953,908,123.77
  5. Step 5: Solve for x
    x = 571,953,908,123.77/862,387.98
  6. Step 6: Final answer
    x = 663,221.10

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Double scale
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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.