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Finding the Fourth Proportional to 560,312.57, 773,229.71 and 305,661.94

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Solution

The fourth proportional to 560,312.57, 773,229.71 and 305,661.94 is: 421,812.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,312.57 : 773,229.71 = 305,661.94 : x
  2. Step 2: Convert to fraction form
    560,312.57/773,229.71 = 305,661.94/x
  3. Step 3: Cross multiply
    560,312.57x = 773,229.71 × 305,661.94
  4. Step 4: Simplify right side
    560,312.57x = 236,346,892,055.32
  5. Step 5: Solve for x
    x = 236,346,892,055.32/560,312.57
  6. Step 6: Final answer
    x = 421,812.58

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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.