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Finding the Fourth Proportional to 473,219.28, 653,037.66 and 258,358.68

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Solution

The fourth proportional to 473,219.28, 653,037.66 and 258,358.68 is: 356,532.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    473,219.28 : 653,037.66 = 258,358.68 : x
  2. Step 2: Convert to fraction form
    473,219.28/653,037.66 = 258,358.68/x
  3. Step 3: Cross multiply
    473,219.28x = 653,037.66 × 258,358.68
  4. Step 4: Simplify right side
    473,219.28x = 168,717,947,827.89
  5. Step 5: Solve for x
    x = 168,717,947,827.89/473,219.28
  6. Step 6: Final answer
    x = 356,532.28

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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.