Home / 839,306.97-1,158,207.42-476,729.72

Finding the Fourth Proportional to 839,306.97, 1,158,207.42 and 476,729.72

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Solution

The fourth proportional to 839,306.97, 1,158,207.42 and 476,729.72 is: 657,866.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,306.97 : 1,158,207.42 = 476,729.72 : x
  2. Step 2: Convert to fraction form
    839,306.97/1,158,207.42 = 476,729.72/x
  3. Step 3: Cross multiply
    839,306.97x = 1,158,207.42 × 476,729.72
  4. Step 4: Simplify right side
    839,306.97x = 552,151,893,247.49
  5. Step 5: Solve for x
    x = 552,151,893,247.49/839,306.97
  6. Step 6: Final answer
    x = 657,866.45

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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.