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Finding the Fourth Proportional to 612,573.24, 919,428.48 and 313,267.71

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Solution

The fourth proportional to 612,573.24, 919,428.48 and 313,267.71 is: 470,192.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,573.24 : 919,428.48 = 313,267.71 : x
  2. Step 2: Convert to fraction form
    612,573.24/919,428.48 = 313,267.71/x
  3. Step 3: Cross multiply
    612,573.24x = 919,428.48 × 313,267.71
  4. Step 4: Simplify right side
    612,573.24x = 288,027,254,438.38
  5. Step 5: Solve for x
    x = 288,027,254,438.38/612,573.24
  6. Step 6: Final answer
    x = 470,192.36

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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.