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Finding the Fourth Proportional to 788,685.80, 1,183,028.70 and 473,757.80

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Solution

The fourth proportional to 788,685.80, 1,183,028.70 and 473,757.80 is: 710,636.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,685.80 : 1,183,028.70 = 473,757.80 : x
  2. Step 2: Convert to fraction form
    788,685.80/1,183,028.70 = 473,757.80/x
  3. Step 3: Cross multiply
    788,685.80x = 1,183,028.70 × 473,757.80
  4. Step 4: Simplify right side
    788,685.80x = 560,469,074,248.86
  5. Step 5: Solve for x
    x = 560,469,074,248.86/788,685.80
  6. Step 6: Final answer
    x = 710,636.70

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Half scale
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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.