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Finding the Fourth Proportional to 374,455.80, 561,683.70 and 234,487.80

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Solution

The fourth proportional to 374,455.80, 561,683.70 and 234,487.80 is: 351,731.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,455.80 : 561,683.70 = 234,487.80 : x
  2. Step 2: Convert to fraction form
    374,455.80/561,683.70 = 234,487.80/x
  3. Step 3: Cross multiply
    374,455.80x = 561,683.70 × 234,487.80
  4. Step 4: Simplify right side
    374,455.80x = 131,707,975,108.86
  5. Step 5: Solve for x
    x = 131,707,975,108.86/374,455.80
  6. Step 6: Final answer
    x = 351,731.70

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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.