Home / 839,729.16-1,158,784.38-477,105.12

Finding the Fourth Proportional to 839,729.16, 1,158,784.38 and 477,105.12

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Solution

The fourth proportional to 839,729.16, 1,158,784.38 and 477,105.12 is: 658,381.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,729.16 : 1,158,784.38 = 477,105.12 : x
  2. Step 2: Convert to fraction form
    839,729.16/1,158,784.38 = 477,105.12/x
  3. Step 3: Cross multiply
    839,729.16x = 1,158,784.38 × 477,105.12
  4. Step 4: Simplify right side
    839,729.16x = 552,861,960,674.03
  5. Step 5: Solve for x
    x = 552,861,960,674.03/839,729.16
  6. Step 6: Final answer
    x = 658,381.28

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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.