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Finding the Fourth Proportional to 531,230.10, 797,363.55 and 265,290.90

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Solution

The fourth proportional to 531,230.10, 797,363.55 and 265,290.90 is: 398,195.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,230.10 : 797,363.55 = 265,290.90 : x
  2. Step 2: Convert to fraction form
    531,230.10/797,363.55 = 265,290.90/x
  3. Step 3: Cross multiply
    531,230.10x = 797,363.55 × 265,290.90
  4. Step 4: Simplify right side
    531,230.10x = 211,533,293,806.70
  5. Step 5: Solve for x
    x = 211,533,293,806.70/531,230.10
  6. Step 6: Final answer
    x = 398,195.23

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Half scale
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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.