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Finding the Fourth Proportional to 374,868.40, 562,432.20 and 361,908.40

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Solution

The fourth proportional to 374,868.40, 562,432.20 and 361,908.40 is: 542,987.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,868.40 : 562,432.20 = 361,908.40 : x
  2. Step 2: Convert to fraction form
    374,868.40/562,432.20 = 361,908.40/x
  3. Step 3: Cross multiply
    374,868.40x = 562,432.20 × 361,908.40
  4. Step 4: Simplify right side
    374,868.40x = 203,548,937,610.48
  5. Step 5: Solve for x
    x = 203,548,937,610.48/374,868.40
  6. Step 6: Final answer
    x = 542,987.72

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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.