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Finding the Fourth Proportional to 516,117.60, 774,176.40 and 488,561.40

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Solution

The fourth proportional to 516,117.60, 774,176.40 and 488,561.40 is: 732,842.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,117.60 : 774,176.40 = 488,561.40 : x
  2. Step 2: Convert to fraction form
    516,117.60/774,176.40 = 488,561.40/x
  3. Step 3: Cross multiply
    516,117.60x = 774,176.40 × 488,561.40
  4. Step 4: Simplify right side
    516,117.60x = 378,232,705,830.96
  5. Step 5: Solve for x
    x = 378,232,705,830.96/516,117.60
  6. Step 6: Final answer
    x = 732,842.10

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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.