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Finding the Fourth Proportional to 646,989.10, 970,483.65 and 367,053.10

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Solution

The fourth proportional to 646,989.10, 970,483.65 and 367,053.10 is: 550,579.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,989.10 : 970,483.65 = 367,053.10 : x
  2. Step 2: Convert to fraction form
    646,989.10/970,483.65 = 367,053.10/x
  3. Step 3: Cross multiply
    646,989.10x = 970,483.65 × 367,053.10
  4. Step 4: Simplify right side
    646,989.10x = 356,219,032,231.82
  5. Step 5: Solve for x
    x = 356,219,032,231.82/646,989.10
  6. Step 6: Final answer
    x = 550,579.65

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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.