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Finding the Fourth Proportional to 468,826.79, 646,980.36 and 253,967.70

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Solution

The fourth proportional to 468,826.79, 646,980.36 and 253,967.70 is: 350,475.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,826.79 : 646,980.36 = 253,967.70 : x
  2. Step 2: Convert to fraction form
    468,826.79/646,980.36 = 253,967.70/x
  3. Step 3: Cross multiply
    468,826.79x = 646,980.36 × 253,967.70
  4. Step 4: Simplify right side
    468,826.79x = 164,312,116,876.74
  5. Step 5: Solve for x
    x = 164,312,116,876.74/468,826.79
  6. Step 6: Final answer
    x = 350,475.11

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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.