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Finding the Fourth Proportional to 374,603.20, 561,904.80 and 108,372.40

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Solution

The fourth proportional to 374,603.20, 561,904.80 and 108,372.40 is: 162,558.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,603.20 : 561,904.80 = 108,372.40 : x
  2. Step 2: Convert to fraction form
    374,603.20/561,904.80 = 108,372.40/x
  3. Step 3: Cross multiply
    374,603.20x = 561,904.80 × 108,372.40
  4. Step 4: Simplify right side
    374,603.20x = 60,894,971,747.52
  5. Step 5: Solve for x
    x = 60,894,971,747.52/374,603.20
  6. Step 6: Final answer
    x = 162,558.60

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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.