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Finding the Fourth Proportional to 353,007.15, 487,153.65 and 191,862.24

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Solution

The fourth proportional to 353,007.15, 487,153.65 and 191,862.24 is: 264,771.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,007.15 : 487,153.65 = 191,862.24 : x
  2. Step 2: Convert to fraction form
    353,007.15/487,153.65 = 191,862.24/x
  3. Step 3: Cross multiply
    353,007.15x = 487,153.65 × 191,862.24
  4. Step 4: Simplify right side
    353,007.15x = 93,466,390,513.18
  5. Step 5: Solve for x
    x = 93,466,390,513.18/353,007.15
  6. Step 6: Final answer
    x = 264,771.95

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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.