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Finding the Fourth Proportional to 646,880.10, 970,320.15 and 366,944.10

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Solution

The fourth proportional to 646,880.10, 970,320.15 and 366,944.10 is: 550,416.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,880.10 : 970,320.15 = 366,944.10 : x
  2. Step 2: Convert to fraction form
    646,880.10/970,320.15 = 366,944.10/x
  3. Step 3: Cross multiply
    646,880.10x = 970,320.15 × 366,944.10
  4. Step 4: Simplify right side
    646,880.10x = 356,053,254,153.62
  5. Step 5: Solve for x
    x = 356,053,254,153.62/646,880.10
  6. Step 6: Final answer
    x = 550,416.15

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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.