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Finding the Fourth Proportional to 547,304.40, 820,956.60 and 448,889.40

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Solution

The fourth proportional to 547,304.40, 820,956.60 and 448,889.40 is: 673,334.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,304.40 : 820,956.60 = 448,889.40 : x
  2. Step 2: Convert to fraction form
    547,304.40/820,956.60 = 448,889.40/x
  3. Step 3: Cross multiply
    547,304.40x = 820,956.60 × 448,889.40
  4. Step 4: Simplify right side
    547,304.40x = 368,518,715,600.04
  5. Step 5: Solve for x
    x = 368,518,715,600.04/547,304.40
  6. Step 6: Final answer
    x = 673,334.10

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Double scale
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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.