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Finding the Fourth Proportional to 646,864.10, 970,296.15 and 366,928.10

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Solution

The fourth proportional to 646,864.10, 970,296.15 and 366,928.10 is: 550,392.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,864.10 : 970,296.15 = 366,928.10 : x
  2. Step 2: Convert to fraction form
    646,864.10/970,296.15 = 366,928.10/x
  3. Step 3: Cross multiply
    646,864.10x = 970,296.15 × 366,928.10
  4. Step 4: Simplify right side
    646,864.10x = 356,028,922,756.82
  5. Step 5: Solve for x
    x = 356,028,922,756.82/646,864.10
  6. Step 6: Final answer
    x = 550,392.15

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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.