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Finding the Fourth Proportional to 354,211.12, 488,808.18 and 193,066.18

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Solution

The fourth proportional to 354,211.12, 488,808.18 and 193,066.18 is: 266,429.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,211.12 : 488,808.18 = 193,066.18 : x
  2. Step 2: Convert to fraction form
    354,211.12/488,808.18 = 193,066.18/x
  3. Step 3: Cross multiply
    354,211.12x = 488,808.18 × 193,066.18
  4. Step 4: Simplify right side
    354,211.12x = 94,372,328,065.35
  5. Step 5: Solve for x
    x = 94,372,328,065.35/354,211.12
  6. Step 6: Final answer
    x = 266,429.60

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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.