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Finding the Fourth Proportional to 345,779.47, 477,177.18 and 192,817.18

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Solution

The fourth proportional to 345,779.47, 477,177.18 and 192,817.18 is: 266,088.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,779.47 : 477,177.18 = 192,817.18 : x
  2. Step 2: Convert to fraction form
    345,779.47/477,177.18 = 192,817.18/x
  3. Step 3: Cross multiply
    345,779.47x = 477,177.18 × 192,817.18
  4. Step 4: Simplify right side
    345,779.47x = 92,007,958,207.95
  5. Step 5: Solve for x
    x = 92,007,958,207.95/345,779.47
  6. Step 6: Final answer
    x = 266,088.55

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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.