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Finding the Fourth Proportional to 610,833.50, 911,290.45 and 577,766.06

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Solution

The fourth proportional to 610,833.50, 911,290.45 and 577,766.06 is: 861,957.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,833.50 : 911,290.45 = 577,766.06 : x
  2. Step 2: Convert to fraction form
    610,833.50/911,290.45 = 577,766.06/x
  3. Step 3: Cross multiply
    610,833.50x = 911,290.45 × 577,766.06
  4. Step 4: Simplify right side
    610,833.50x = 526,512,692,812.13
  5. Step 5: Solve for x
    x = 526,512,692,812.13/610,833.50
  6. Step 6: Final answer
    x = 861,957.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.