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Finding the Fourth Proportional to 664,473.80, 996,710.70 and 243,913.70

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Solution

The fourth proportional to 664,473.80, 996,710.70 and 243,913.70 is: 365,870.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,473.80 : 996,710.70 = 243,913.70 : x
  2. Step 2: Convert to fraction form
    664,473.80/996,710.70 = 243,913.70/x
  3. Step 3: Cross multiply
    664,473.80x = 996,710.70 × 243,913.70
  4. Step 4: Simplify right side
    664,473.80x = 243,111,394,666.59
  5. Step 5: Solve for x
    x = 243,111,394,666.59/664,473.80
  6. Step 6: Final answer
    x = 365,870.55

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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.