Home / 774,066.78-1,068,439.41-516,319.11

Finding the Fourth Proportional to 774,066.78, 1,068,439.41 and 516,319.11

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Solution

The fourth proportional to 774,066.78, 1,068,439.41 and 516,319.11 is: 712,671.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    774,066.78 : 1,068,439.41 = 516,319.11 : x
  2. Step 2: Convert to fraction form
    774,066.78/1,068,439.41 = 516,319.11/x
  3. Step 3: Cross multiply
    774,066.78x = 1,068,439.41 × 516,319.11
  4. Step 4: Simplify right side
    774,066.78x = 551,655,685,260.13
  5. Step 5: Solve for x
    x = 551,655,685,260.13/774,066.78
  6. Step 6: Final answer
    x = 712,671.95

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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.