Home / 911,811.83-1,258,304.25-498,356.94

Finding the Fourth Proportional to 911,811.83, 1,258,304.25 and 498,356.94

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Solution

The fourth proportional to 911,811.83, 1,258,304.25 and 498,356.94 is: 687,734.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,811.83 : 1,258,304.25 = 498,356.94 : x
  2. Step 2: Convert to fraction form
    911,811.83/1,258,304.25 = 498,356.94/x
  3. Step 3: Cross multiply
    911,811.83x = 1,258,304.25 × 498,356.94
  4. Step 4: Simplify right side
    911,811.83x = 627,084,655,619.00
  5. Step 5: Solve for x
    x = 627,084,655,619.00/911,811.83
  6. Step 6: Final answer
    x = 687,734.72

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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.