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Finding the Fourth Proportional to 473,479.41, 653,400.86 and 258,619.47

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Solution

The fourth proportional to 473,479.41, 653,400.86 and 258,619.47 is: 356,894.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    473,479.41 : 653,400.86 = 258,619.47 : x
  2. Step 2: Convert to fraction form
    473,479.41/653,400.86 = 258,619.47/x
  3. Step 3: Cross multiply
    473,479.41x = 653,400.86 × 258,619.47
  4. Step 4: Simplify right side
    473,479.41x = 168,982,184,110.74
  5. Step 5: Solve for x
    x = 168,982,184,110.74/473,479.41
  6. Step 6: Final answer
    x = 356,894.47

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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.