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Finding the Fourth Proportional to 358,746.63, 495,034.43 and 220,903.46

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Solution

The fourth proportional to 358,746.63, 495,034.43 and 220,903.46 is: 304,824.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,746.63 : 495,034.43 = 220,903.46 : x
  2. Step 2: Convert to fraction form
    358,746.63/495,034.43 = 220,903.46/x
  3. Step 3: Cross multiply
    358,746.63x = 495,034.43 × 220,903.46
  4. Step 4: Simplify right side
    358,746.63x = 109,354,816,064.02
  5. Step 5: Solve for x
    x = 109,354,816,064.02/358,746.63
  6. Step 6: Final answer
    x = 304,824.65

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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.