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Finding the Fourth Proportional to 473,754.78, 653,790.15 and 258,903.90

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Solution

The fourth proportional to 473,754.78, 653,790.15 and 258,903.90 is: 357,292.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    473,754.78 : 653,790.15 = 258,903.90 : x
  2. Step 2: Convert to fraction form
    473,754.78/653,790.15 = 258,903.90/x
  3. Step 3: Cross multiply
    473,754.78x = 653,790.15 × 258,903.90
  4. Step 4: Simplify right side
    473,754.78x = 169,268,819,616.59
  5. Step 5: Solve for x
    x = 169,268,819,616.59/473,754.78
  6. Step 6: Final answer
    x = 357,292.06

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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.