Home / 828,188.40-1,142,873.52-465,627.60

Finding the Fourth Proportional to 828,188.40, 1,142,873.52 and 465,627.60

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Solution

The fourth proportional to 828,188.40, 1,142,873.52 and 465,627.60 is: 642,551.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,188.40 : 1,142,873.52 = 465,627.60 : x
  2. Step 2: Convert to fraction form
    828,188.40/1,142,873.52 = 465,627.60/x
  3. Step 3: Cross multiply
    828,188.40x = 1,142,873.52 × 465,627.60
  4. Step 4: Simplify right side
    828,188.40x = 532,153,454,221.15
  5. Step 5: Solve for x
    x = 532,153,454,221.15/828,188.40
  6. Step 6: Final answer
    x = 642,551.20

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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.