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Finding the Fourth Proportional to 404,550,706.50, 558,281,455.29 and 218,911,724.10

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Solution

The fourth proportional to 404,550,706.50, 558,281,455.29 and 218,911,724.10 is: 302,098,980.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,550,706.50 : 558,281,455.29 = 218,911,724.10 : x
  2. Step 2: Convert to fraction form
    404,550,706.50/558,281,455.29 = 218,911,724.10/x
  3. Step 3: Cross multiply
    404,550,706.50x = 558,281,455.29 × 218,911,724.10
  4. Step 4: Simplify right side
    404,550,706.50x = 122,214,355,910,590,960
  5. Step 5: Solve for x
    x = 122,214,355,910,590,960/404,550,706.50
  6. Step 6: Final answer
    x = 302,098,980.29

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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.