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Finding the Fourth Proportional to 664,295.80, 996,443.70 and 570,983.80

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Solution

The fourth proportional to 664,295.80, 996,443.70 and 570,983.80 is: 856,475.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,295.80 : 996,443.70 = 570,983.80 : x
  2. Step 2: Convert to fraction form
    664,295.80/996,443.70 = 570,983.80/x
  3. Step 3: Cross multiply
    664,295.80x = 996,443.70 × 570,983.80
  4. Step 4: Simplify right side
    664,295.80x = 568,953,210,312.06
  5. Step 5: Solve for x
    x = 568,953,210,312.06/664,295.80
  6. Step 6: Final answer
    x = 856,475.70

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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.