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Finding the Fourth Proportional to 664,326.80, 927,958 and 664,326.80

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Solution

The fourth proportional to 664,326.80, 927,958 and 664,326.80 is: 927,958

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,326.80 : 927,958 = 664,326.80 : x
  2. Step 2: Convert to fraction form
    664,326.80/927,958 = 664,326.80/x
  3. Step 3: Cross multiply
    664,326.80x = 927,958 × 664,326.80
  4. Step 4: Simplify right side
    664,326.80x = 616,467,368,674.40
  5. Step 5: Solve for x
    x = 616,467,368,674.40/664,326.80
  6. Step 6: Final answer
    x = 927,958

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.