Home / 926,287.11-1,278,299.07-518,385.69

Finding the Fourth Proportional to 926,287.11, 1,278,299.07 and 518,385.69

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Solution

The fourth proportional to 926,287.11, 1,278,299.07 and 518,385.69 is: 715,385.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,287.11 : 1,278,299.07 = 518,385.69 : x
  2. Step 2: Convert to fraction form
    926,287.11/1,278,299.07 = 518,385.69/x
  3. Step 3: Cross multiply
    926,287.11x = 1,278,299.07 × 518,385.69
  4. Step 4: Simplify right side
    926,287.11x = 662,651,945,428.31
  5. Step 5: Solve for x
    x = 662,651,945,428.31/926,287.11
  6. Step 6: Final answer
    x = 715,385.04

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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.