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Finding the Fourth Proportional to 516,329.01, 712,543.19 and 286,907.49

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Solution

The fourth proportional to 516,329.01, 712,543.19 and 286,907.49 is: 395,937.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,329.01 : 712,543.19 = 286,907.49 : x
  2. Step 2: Convert to fraction form
    516,329.01/712,543.19 = 286,907.49/x
  3. Step 3: Cross multiply
    516,329.01x = 712,543.19 × 286,907.49
  4. Step 4: Simplify right side
    516,329.01x = 204,433,976,724.96
  5. Step 5: Solve for x
    x = 204,433,976,724.96/516,329.01
  6. Step 6: Final answer
    x = 395,937.42

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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.