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Finding the Fourth Proportional to 354,511.64, 489,227.58 and 193,370.16

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Solution

The fourth proportional to 354,511.64, 489,227.58 and 193,370.16 is: 266,851.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,511.64 : 489,227.58 = 193,370.16 : x
  2. Step 2: Convert to fraction form
    354,511.64/489,227.58 = 193,370.16/x
  3. Step 3: Cross multiply
    354,511.64x = 489,227.58 × 193,370.16
  4. Step 4: Simplify right side
    354,511.64x = 94,602,015,421.01
  5. Step 5: Solve for x
    x = 94,602,015,421.01/354,511.64
  6. Step 6: Final answer
    x = 266,851.65

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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.