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Finding the Fourth Proportional to 603,906,159.60, 905,859,239.40 and 361,444,258.80

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Solution

The fourth proportional to 603,906,159.60, 905,859,239.40 and 361,444,258.80 is: 542,166,388.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,906,159.60 : 905,859,239.40 = 361,444,258.80 : x
  2. Step 2: Convert to fraction form
    603,906,159.60/905,859,239.40 = 361,444,258.80/x
  3. Step 3: Cross multiply
    603,906,159.60x = 905,859,239.40 × 361,444,258.80
  4. Step 4: Simplify right side
    603,906,159.60x = 327,417,621,362,064,768
  5. Step 5: Solve for x
    x = 327,417,621,362,064,768/603,906,159.60
  6. Step 6: Final answer
    x = 542,166,388.20

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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.