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Finding the Fourth Proportional to 574,334.40, 859,946.40 and 449,918.40

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Solution

The fourth proportional to 574,334.40, 859,946.40 and 449,918.40 is: 673,659.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,334.40 : 859,946.40 = 449,918.40 : x
  2. Step 2: Convert to fraction form
    574,334.40/859,946.40 = 449,918.40/x
  3. Step 3: Cross multiply
    574,334.40x = 859,946.40 × 449,918.40
  4. Step 4: Simplify right side
    574,334.40x = 386,905,708,373.76
  5. Step 5: Solve for x
    x = 386,905,708,373.76/574,334.40
  6. Step 6: Final answer
    x = 673,659.30

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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.