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Finding the Fourth Proportional to 336,078.78, 504,118.17 and 194,140.05

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Solution

The fourth proportional to 336,078.78, 504,118.17 and 194,140.05 is: 291,210.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,078.78 : 504,118.17 = 194,140.05 : x
  2. Step 2: Convert to fraction form
    336,078.78/504,118.17 = 194,140.05/x
  3. Step 3: Cross multiply
    336,078.78x = 504,118.17 × 194,140.05
  4. Step 4: Simplify right side
    336,078.78x = 97,869,526,729.71
  5. Step 5: Solve for x
    x = 97,869,526,729.71/336,078.78
  6. Step 6: Final answer
    x = 291,210.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.