Home / 911,976.17-1,258,536.29-498,524.83

Finding the Fourth Proportional to 911,976.17, 1,258,536.29 and 498,524.83

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Solution

The fourth proportional to 911,976.17, 1,258,536.29 and 498,524.83 is: 687,969.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,976.17 : 1,258,536.29 = 498,524.83 : x
  2. Step 2: Convert to fraction form
    911,976.17/1,258,536.29 = 498,524.83/x
  3. Step 3: Cross multiply
    911,976.17x = 1,258,536.29 × 498,524.83
  4. Step 4: Simplify right side
    911,976.17x = 627,411,584,382.12
  5. Step 5: Solve for x
    x = 627,411,584,382.12/911,976.17
  6. Step 6: Final answer
    x = 687,969.28

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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.