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Finding the Fourth Proportional to 514,193.60, 771,290.40 and 333,790.40

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Solution

The fourth proportional to 514,193.60, 771,290.40 and 333,790.40 is: 500,685.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,193.60 : 771,290.40 = 333,790.40 : x
  2. Step 2: Convert to fraction form
    514,193.60/771,290.40 = 333,790.40/x
  3. Step 3: Cross multiply
    514,193.60x = 771,290.40 × 333,790.40
  4. Step 4: Simplify right side
    514,193.60x = 257,449,331,132.16
  5. Step 5: Solve for x
    x = 257,449,331,132.16/514,193.60
  6. Step 6: Final answer
    x = 500,685.60

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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.