Home / 866,143.87-1,195,286.28-478,985.34

Finding the Fourth Proportional to 866,143.87, 1,195,286.28 and 478,985.34

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Solution

The fourth proportional to 866,143.87, 1,195,286.28 and 478,985.34 is: 661,004.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,143.87 : 1,195,286.28 = 478,985.34 : x
  2. Step 2: Convert to fraction form
    866,143.87/1,195,286.28 = 478,985.34/x
  3. Step 3: Cross multiply
    866,143.87x = 1,195,286.28 × 478,985.34
  4. Step 4: Simplify right side
    866,143.87x = 572,524,602,537.01
  5. Step 5: Solve for x
    x = 572,524,602,537.01/866,143.87
  6. Step 6: Final answer
    x = 661,004.05

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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.