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Finding the Fourth Proportional to 604,393,346.80, 906,590,020.20 and 216,228,840.40

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Solution

The fourth proportional to 604,393,346.80, 906,590,020.20 and 216,228,840.40 is: 324,343,260.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,393,346.80 : 906,590,020.20 = 216,228,840.40 : x
  2. Step 2: Convert to fraction form
    604,393,346.80/906,590,020.20 = 216,228,840.40/x
  3. Step 3: Cross multiply
    604,393,346.80x = 906,590,020.20 × 216,228,840.40
  4. Step 4: Simplify right side
    604,393,346.80x = 196,030,908,786,058,592
  5. Step 5: Solve for x
    x = 196,030,908,786,058,592/604,393,346.80
  6. Step 6: Final answer
    x = 324,343,260.60

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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.