Home / 839,520.18-1,158,504.12-457,538.76

Finding the Fourth Proportional to 839,520.18, 1,158,504.12 and 457,538.76

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Solution

The fourth proportional to 839,520.18, 1,158,504.12 and 457,538.76 is: 631,385.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,520.18 : 1,158,504.12 = 457,538.76 : x
  2. Step 2: Convert to fraction form
    839,520.18/1,158,504.12 = 457,538.76/x
  3. Step 3: Cross multiply
    839,520.18x = 1,158,504.12 × 457,538.76
  4. Step 4: Simplify right side
    839,520.18x = 530,060,538,519.69
  5. Step 5: Solve for x
    x = 530,060,538,519.69/839,520.18
  6. Step 6: Final answer
    x = 631,385.11

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Half scale
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Double scale
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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.