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Finding the Fourth Proportional to 451,281.72, 622,616.04 and 260,290.20

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Solution

The fourth proportional to 451,281.72, 622,616.04 and 260,290.20 is: 359,112.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,281.72 : 622,616.04 = 260,290.20 : x
  2. Step 2: Convert to fraction form
    451,281.72/622,616.04 = 260,290.20/x
  3. Step 3: Cross multiply
    451,281.72x = 622,616.04 × 260,290.20
  4. Step 4: Simplify right side
    451,281.72x = 162,060,853,574.81
  5. Step 5: Solve for x
    x = 162,060,853,574.81/451,281.72
  6. Step 6: Final answer
    x = 359,112.38

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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.