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Finding the Fourth Proportional to 354,368.15, 489,017.39 and 193,226.34

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Solution

The fourth proportional to 354,368.15, 489,017.39 and 193,226.34 is: 266,646.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,368.15 : 489,017.39 = 193,226.34 : x
  2. Step 2: Convert to fraction form
    354,368.15/489,017.39 = 193,226.34/x
  3. Step 3: Cross multiply
    354,368.15x = 489,017.39 × 193,226.34
  4. Step 4: Simplify right side
    354,368.15x = 94,491,041,333.74
  5. Step 5: Solve for x
    x = 94,491,041,333.74/354,368.15
  6. Step 6: Final answer
    x = 266,646.54

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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.