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Finding the Fourth Proportional to 334,728.80, 501,934.80 and 194,530.40

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Solution

The fourth proportional to 334,728.80, 501,934.80 and 194,530.40 is: 291,703.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,728.80 : 501,934.80 = 194,530.40 : x
  2. Step 2: Convert to fraction form
    334,728.80/501,934.80 = 194,530.40/x
  3. Step 3: Cross multiply
    334,728.80x = 501,934.80 × 194,530.40
  4. Step 4: Simplify right side
    334,728.80x = 97,641,577,417.92
  5. Step 5: Solve for x
    x = 97,641,577,417.92/334,728.80
  6. Step 6: Final answer
    x = 291,703.54

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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.