Home / 861,286.06-1,291,929.08-355,860.14

Finding the Fourth Proportional to 861,286.06, 1,291,929.08 and 355,860.14

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Solution

The fourth proportional to 861,286.06, 1,291,929.08 and 355,860.14 is: 533,790.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,286.06 : 1,291,929.08 = 355,860.14 : x
  2. Step 2: Convert to fraction form
    861,286.06/1,291,929.08 = 355,860.14/x
  3. Step 3: Cross multiply
    861,286.06x = 1,291,929.08 × 355,860.14
  4. Step 4: Simplify right side
    861,286.06x = 459,746,063,278.87
  5. Step 5: Solve for x
    x = 459,746,063,278.87/861,286.06
  6. Step 6: Final answer
    x = 533,790.21

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.