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Finding the Fourth Proportional to 471,616,220.80, 706,752,484.80 and 347,828,521.60

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Solution

The fourth proportional to 471,616,220.80, 706,752,484.80 and 347,828,521.60 is: 521,247,279.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    471,616,220.80 : 706,752,484.80 = 347,828,521.60 : x
  2. Step 2: Convert to fraction form
    471,616,220.80/706,752,484.80 = 347,828,521.60/x
  3. Step 3: Cross multiply
    471,616,220.80x = 706,752,484.80 × 347,828,521.60
  4. Step 4: Simplify right side
    471,616,220.80x = 245,828,671,925,110,464
  5. Step 5: Solve for x
    x = 245,828,671,925,110,464/471,616,220.80
  6. Step 6: Final answer
    x = 521,247,279.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.