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Finding the Fourth Proportional to 516,153.33, 712,267.49 and 286,725.49

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Solution

The fourth proportional to 516,153.33, 712,267.49 and 286,725.49 is: 395,667.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,153.33 : 712,267.49 = 286,725.49 : x
  2. Step 2: Convert to fraction form
    516,153.33/712,267.49 = 286,725.49/x
  3. Step 3: Cross multiply
    516,153.33x = 712,267.49 × 286,725.49
  4. Step 4: Simplify right side
    516,153.33x = 204,225,244,017.47
  5. Step 5: Solve for x
    x = 204,225,244,017.47/516,153.33
  6. Step 6: Final answer
    x = 395,667.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.