Home / 840,178.71-1,159,247.30-477,574.02

Finding the Fourth Proportional to 840,178.71, 1,159,247.30 and 477,574.02

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Solution

The fourth proportional to 840,178.71, 1,159,247.30 and 477,574.02 is: 658,938.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,178.71 : 1,159,247.30 = 477,574.02 : x
  2. Step 2: Convert to fraction form
    840,178.71/1,159,247.30 = 477,574.02/x
  3. Step 3: Cross multiply
    840,178.71x = 1,159,247.30 × 477,574.02
  4. Step 4: Simplify right side
    840,178.71x = 553,626,390,847.28
  5. Step 5: Solve for x
    x = 553,626,390,847.28/840,178.71
  6. Step 6: Final answer
    x = 658,938.85

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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.