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Finding the Fourth Proportional to 342,438.16, 472,539 and 191,506

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Solution

The fourth proportional to 342,438.16, 472,539 and 191,506 is: 264,263.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,438.16 : 472,539 = 191,506 : x
  2. Step 2: Convert to fraction form
    342,438.16/472,539 = 191,506/x
  3. Step 3: Cross multiply
    342,438.16x = 472,539 × 191,506
  4. Step 4: Simplify right side
    342,438.16x = 90,494,053,734
  5. Step 5: Solve for x
    x = 90,494,053,734/342,438.16
  6. Step 6: Final answer
    x = 264,263.93

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.