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Finding the Fourth Proportional to 647,504.30, 971,256.45 and 584,518.70

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Solution

The fourth proportional to 647,504.30, 971,256.45 and 584,518.70 is: 876,778.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,504.30 : 971,256.45 = 584,518.70 : x
  2. Step 2: Convert to fraction form
    647,504.30/971,256.45 = 584,518.70/x
  3. Step 3: Cross multiply
    647,504.30x = 971,256.45 × 584,518.70
  4. Step 4: Simplify right side
    647,504.30x = 567,717,557,520.62
  5. Step 5: Solve for x
    x = 567,717,557,520.62/647,504.30
  6. Step 6: Final answer
    x = 876,778.05

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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.