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Finding the Fourth Proportional to 368,208.95, 508,131.41 and 207,062.55

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Solution

The fourth proportional to 368,208.95, 508,131.41 and 207,062.55 is: 285,748.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,208.95 : 508,131.41 = 207,062.55 : x
  2. Step 2: Convert to fraction form
    368,208.95/508,131.41 = 207,062.55/x
  3. Step 3: Cross multiply
    368,208.95x = 508,131.41 × 207,062.55
  4. Step 4: Simplify right side
    368,208.95x = 105,214,984,454.38
  5. Step 5: Solve for x
    x = 105,214,984,454.38/368,208.95
  6. Step 6: Final answer
    x = 285,748.04

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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.