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Finding the Fourth Proportional to 664,340.30, 927,976.90 and 664,340.30

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Solution

The fourth proportional to 664,340.30, 927,976.90 and 664,340.30 is: 927,976.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,340.30 : 927,976.90 = 664,340.30 : x
  2. Step 2: Convert to fraction form
    664,340.30/927,976.90 = 664,340.30/x
  3. Step 3: Cross multiply
    664,340.30x = 927,976.90 × 664,340.30
  4. Step 4: Simplify right side
    664,340.30x = 616,492,452,139.07
  5. Step 5: Solve for x
    x = 616,492,452,139.07/664,340.30
  6. Step 6: Final answer
    x = 927,976.90

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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.