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Finding the Fourth Proportional to 572,755.85, 790,225.23 and 330,950.19

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Solution

The fourth proportional to 572,755.85, 790,225.23 and 330,950.19 is: 456,608.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,755.85 : 790,225.23 = 330,950.19 : x
  2. Step 2: Convert to fraction form
    572,755.85/790,225.23 = 330,950.19/x
  3. Step 3: Cross multiply
    572,755.85x = 790,225.23 × 330,950.19
  4. Step 4: Simplify right side
    572,755.85x = 261,525,190,011.29
  5. Step 5: Solve for x
    x = 261,525,190,011.29/572,755.85
  6. Step 6: Final answer
    x = 456,608.50

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Double scale
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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.