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Finding the Fourth Proportional to 560,448.40, 773,396.51 and 331,079.34

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Solution

The fourth proportional to 560,448.40, 773,396.51 and 331,079.34 is: 456,876.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,448.40 : 773,396.51 = 331,079.34 : x
  2. Step 2: Convert to fraction form
    560,448.40/773,396.51 = 331,079.34/x
  3. Step 3: Cross multiply
    560,448.40x = 773,396.51 × 331,079.34
  4. Step 4: Simplify right side
    560,448.40x = 256,055,605,158.77
  5. Step 5: Solve for x
    x = 256,055,605,158.77/560,448.40
  6. Step 6: Final answer
    x = 456,876.33

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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.