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Finding the Fourth Proportional to 501,503.43, 692,121.60 and 286,601.52

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Solution

The fourth proportional to 501,503.43, 692,121.60 and 286,601.52 is: 395,536.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,503.43 : 692,121.60 = 286,601.52 : x
  2. Step 2: Convert to fraction form
    501,503.43/692,121.60 = 286,601.52/x
  3. Step 3: Cross multiply
    501,503.43x = 692,121.60 × 286,601.52
  4. Step 4: Simplify right side
    501,503.43x = 198,363,102,584.83
  5. Step 5: Solve for x
    x = 198,363,102,584.83/501,503.43
  6. Step 6: Final answer
    x = 395,536.88

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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.