Home / 878,873.03-1,212,854.28-516,312.17

Finding the Fourth Proportional to 878,873.03, 1,212,854.28 and 516,312.17

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Solution

The fourth proportional to 878,873.03, 1,212,854.28 and 516,312.17 is: 712,516.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,873.03 : 1,212,854.28 = 516,312.17 : x
  2. Step 2: Convert to fraction form
    878,873.03/1,212,854.28 = 516,312.17/x
  3. Step 3: Cross multiply
    878,873.03x = 1,212,854.28 × 516,312.17
  4. Step 4: Simplify right side
    878,873.03x = 626,211,419,136.32
  5. Step 5: Solve for x
    x = 626,211,419,136.32/878,873.03
  6. Step 6: Final answer
    x = 712,516.37

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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.