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Finding the Fourth Proportional to 473,291.71, 653,139.96 and 258,430.25

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Solution

The fourth proportional to 473,291.71, 653,139.96 and 258,430.25 is: 356,632.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    473,291.71 : 653,139.96 = 258,430.25 : x
  2. Step 2: Convert to fraction form
    473,291.71/653,139.96 = 258,430.25/x
  3. Step 3: Cross multiply
    473,291.71x = 653,139.96 × 258,430.25
  4. Step 4: Simplify right side
    473,291.71x = 168,791,120,137.61
  5. Step 5: Solve for x
    x = 168,791,120,137.61/473,291.71
  6. Step 6: Final answer
    x = 356,632.32

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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.