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Finding the Fourth Proportional to 436,066.80, 654,100.20 and 286,767.60

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Solution

The fourth proportional to 436,066.80, 654,100.20 and 286,767.60 is: 430,151.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,066.80 : 654,100.20 = 286,767.60 : x
  2. Step 2: Convert to fraction form
    436,066.80/654,100.20 = 286,767.60/x
  3. Step 3: Cross multiply
    436,066.80x = 654,100.20 × 286,767.60
  4. Step 4: Simplify right side
    436,066.80x = 187,574,744,513.52
  5. Step 5: Solve for x
    x = 187,574,744,513.52/436,066.80
  6. Step 6: Final answer
    x = 430,151.40

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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.