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Finding the Fourth Proportional to 516,329.76, 712,532.73 and 286,924.39

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Solution

The fourth proportional to 516,329.76, 712,532.73 and 286,924.39 is: 395,954.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,329.76 : 712,532.73 = 286,924.39 : x
  2. Step 2: Convert to fraction form
    516,329.76/712,532.73 = 286,924.39/x
  3. Step 3: Cross multiply
    516,329.76x = 712,532.73 × 286,924.39
  4. Step 4: Simplify right side
    516,329.76x = 204,443,018,910.29
  5. Step 5: Solve for x
    x = 204,443,018,910.29/516,329.76
  6. Step 6: Final answer
    x = 395,954.36

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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.