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Finding the Fourth Proportional to 560,381.90, 773,526.65 and 330,940.08

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Solution

The fourth proportional to 560,381.90, 773,526.65 and 330,940.08 is: 456,815.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,381.90 : 773,526.65 = 330,940.08 : x
  2. Step 2: Convert to fraction form
    560,381.90/773,526.65 = 330,940.08/x
  3. Step 3: Cross multiply
    560,381.90x = 773,526.65 × 330,940.08
  4. Step 4: Simplify right side
    560,381.90x = 255,990,969,778.43
  5. Step 5: Solve for x
    x = 255,990,969,778.43/560,381.90
  6. Step 6: Final answer
    x = 456,815.20

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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.