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Finding the Fourth Proportional to 423,409.65, 584,283.56 and 251,334.87

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Solution

The fourth proportional to 423,409.65, 584,283.56 and 251,334.87 is: 346,829.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,409.65 : 584,283.56 = 251,334.87 : x
  2. Step 2: Convert to fraction form
    423,409.65/584,283.56 = 251,334.87/x
  3. Step 3: Cross multiply
    423,409.65x = 584,283.56 × 251,334.87
  4. Step 4: Simplify right side
    423,409.65x = 146,850,831,339.06
  5. Step 5: Solve for x
    x = 146,850,831,339.06/423,409.65
  6. Step 6: Final answer
    x = 346,829.20

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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.