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Finding the Fourth Proportional to 522,020.24, 720,438.44 and 292,616.48

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Solution

The fourth proportional to 522,020.24, 720,438.44 and 292,616.48 is: 403,839.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,020.24 : 720,438.44 = 292,616.48 : x
  2. Step 2: Convert to fraction form
    522,020.24/720,438.44 = 292,616.48/x
  3. Step 3: Cross multiply
    522,020.24x = 720,438.44 × 292,616.48
  4. Step 4: Simplify right side
    522,020.24x = 210,812,160,369.49
  5. Step 5: Solve for x
    x = 210,812,160,369.49/522,020.24
  6. Step 6: Final answer
    x = 403,839.05

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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.