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Finding the Fourth Proportional to 353,559.97, 487,903.40 and 192,411.55

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Solution

The fourth proportional to 353,559.97, 487,903.40 and 192,411.55 is: 265,522.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,559.97 : 487,903.40 = 192,411.55 : x
  2. Step 2: Convert to fraction form
    353,559.97/487,903.40 = 192,411.55/x
  3. Step 3: Cross multiply
    353,559.97x = 487,903.40 × 192,411.55
  4. Step 4: Simplify right side
    353,559.97x = 93,878,249,813.63
  5. Step 5: Solve for x
    x = 93,878,249,813.63/353,559.97
  6. Step 6: Final answer
    x = 265,522.85

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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.