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Finding the Fourth Proportional to 356,070.75, 491,386.29 and 194,925.30

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Solution

The fourth proportional to 356,070.75, 491,386.29 and 194,925.30 is: 269,001.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,070.75 : 491,386.29 = 194,925.30 : x
  2. Step 2: Convert to fraction form
    356,070.75/491,386.29 = 194,925.30/x
  3. Step 3: Cross multiply
    356,070.75x = 491,386.29 × 194,925.30
  4. Step 4: Simplify right side
    356,070.75x = 95,783,619,994.14
  5. Step 5: Solve for x
    x = 95,783,619,994.14/356,070.75
  6. Step 6: Final answer
    x = 269,001.65

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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.