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Finding the Fourth Proportional to 473,210.78, 653,040.78 and 258,359.90

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Solution

The fourth proportional to 473,210.78, 653,040.78 and 258,359.90 is: 356,542.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    473,210.78 : 653,040.78 = 258,359.90 : x
  2. Step 2: Convert to fraction form
    473,210.78/653,040.78 = 258,359.90/x
  3. Step 3: Cross multiply
    473,210.78x = 653,040.78 × 258,359.90
  4. Step 4: Simplify right side
    473,210.78x = 168,719,550,616.72
  5. Step 5: Solve for x
    x = 168,719,550,616.72/473,210.78
  6. Step 6: Final answer
    x = 356,542.07

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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.