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Finding the Fourth Proportional to 372,654.40, 558,981.60 and 346,410.40

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Solution

The fourth proportional to 372,654.40, 558,981.60 and 346,410.40 is: 519,615.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,654.40 : 558,981.60 = 346,410.40 : x
  2. Step 2: Convert to fraction form
    372,654.40/558,981.60 = 346,410.40/x
  3. Step 3: Cross multiply
    372,654.40x = 558,981.60 × 346,410.40
  4. Step 4: Simplify right side
    372,654.40x = 193,637,039,648.64
  5. Step 5: Solve for x
    x = 193,637,039,648.64/372,654.40
  6. Step 6: Final answer
    x = 519,615.60

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Similar ratio
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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.