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Finding the Fourth Proportional to 354,585.19, 489,326.91 and 193,440.24

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Solution

The fourth proportional to 354,585.19, 489,326.91 and 193,440.24 is: 266,947.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,585.19 : 489,326.91 = 193,440.24 : x
  2. Step 2: Convert to fraction form
    354,585.19/489,326.91 = 193,440.24/x
  3. Step 3: Cross multiply
    354,585.19x = 489,326.91 × 193,440.24
  4. Step 4: Simplify right side
    354,585.19x = 94,655,514,908.86
  5. Step 5: Solve for x
    x = 94,655,514,908.86/354,585.19
  6. Step 6: Final answer
    x = 266,947.18

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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.