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Finding the Fourth Proportional to 647,544.20, 971,316.30 and 597,777.80

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Solution

The fourth proportional to 647,544.20, 971,316.30 and 597,777.80 is: 896,666.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,544.20 : 971,316.30 = 597,777.80 : x
  2. Step 2: Convert to fraction form
    647,544.20/971,316.30 = 597,777.80/x
  3. Step 3: Cross multiply
    647,544.20x = 971,316.30 × 597,777.80
  4. Step 4: Simplify right side
    647,544.20x = 580,631,320,918.14
  5. Step 5: Solve for x
    x = 580,631,320,918.14/647,544.20
  6. Step 6: Final answer
    x = 896,666.70

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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.