Home / 663,986.76-916,304.63-362,187.24

Finding the Fourth Proportional to 663,986.76, 916,304.63 and 362,187.24

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Solution

The fourth proportional to 663,986.76, 916,304.63 and 362,187.24 is: 499,819.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,986.76 : 916,304.63 = 362,187.24 : x
  2. Step 2: Convert to fraction form
    663,986.76/916,304.63 = 362,187.24/x
  3. Step 3: Cross multiply
    663,986.76x = 916,304.63 × 362,187.24
  4. Step 4: Simplify right side
    663,986.76x = 331,873,843,127.99
  5. Step 5: Solve for x
    x = 331,873,843,127.99/663,986.76
  6. Step 6: Final answer
    x = 499,819.97

Related Problems

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Half scale
Find fourth proportional to 1,327,973.52, 1,832,609.25 and 724,374.48
Double scale
Find fourth proportional to 663,987.76, 916,306.01 and 362,188.24
Similar ratio
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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.