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Finding the Fourth Proportional to 638,513.60, 957,770.40 and 514,097.60

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Solution

The fourth proportional to 638,513.60, 957,770.40 and 514,097.60 is: 771,146.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,513.60 : 957,770.40 = 514,097.60 : x
  2. Step 2: Convert to fraction form
    638,513.60/957,770.40 = 514,097.60/x
  3. Step 3: Cross multiply
    638,513.60x = 957,770.40 × 514,097.60
  4. Step 4: Simplify right side
    638,513.60x = 492,387,463,991.04
  5. Step 5: Solve for x
    x = 492,387,463,991.04/638,513.60
  6. Step 6: Final answer
    x = 771,146.40

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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.