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Finding the Fourth Proportional to 373,482.14, 515,390.43 and 220,569.60

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Solution

The fourth proportional to 373,482.14, 515,390.43 and 220,569.60 is: 304,377.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,482.14 : 515,390.43 = 220,569.60 : x
  2. Step 2: Convert to fraction form
    373,482.14/515,390.43 = 220,569.60/x
  3. Step 3: Cross multiply
    373,482.14x = 515,390.43 × 220,569.60
  4. Step 4: Simplify right side
    373,482.14x = 113,679,460,988.93
  5. Step 5: Solve for x
    x = 113,679,460,988.93/373,482.14
  6. Step 6: Final answer
    x = 304,377.24

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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.