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Finding the Fourth Proportional to 881,212.10, 1,321,818.15 and 460,616.90

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Solution

The fourth proportional to 881,212.10, 1,321,818.15 and 460,616.90 is: 690,925.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    881,212.10 : 1,321,818.15 = 460,616.90 : x
  2. Step 2: Convert to fraction form
    881,212.10/1,321,818.15 = 460,616.90/x
  3. Step 3: Cross multiply
    881,212.10x = 1,321,818.15 × 460,616.90
  4. Step 4: Simplify right side
    881,212.10x = 608,851,778,616.74
  5. Step 5: Solve for x
    x = 608,851,778,616.74/881,212.10
  6. Step 6: Final answer
    x = 690,925.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.