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Finding the Fourth Proportional to 574,372.40, 861,731.40 and 308,260.40

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Solution

The fourth proportional to 574,372.40, 861,731.40 and 308,260.40 is: 462,483.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,372.40 : 861,731.40 = 308,260.40 : x
  2. Step 2: Convert to fraction form
    574,372.40/861,731.40 = 308,260.40/x
  3. Step 3: Cross multiply
    574,372.40x = 861,731.40 × 308,260.40
  4. Step 4: Simplify right side
    574,372.40x = 265,637,666,056.56
  5. Step 5: Solve for x
    x = 265,637,666,056.56/574,372.40
  6. Step 6: Final answer
    x = 462,483.34

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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.