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Finding the Fourth Proportional to 604,390,010.40, 906,585,015.60 and 195,487,495.20

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Solution

The fourth proportional to 604,390,010.40, 906,585,015.60 and 195,487,495.20 is: 293,231,242.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,390,010.40 : 906,585,015.60 = 195,487,495.20 : x
  2. Step 2: Convert to fraction form
    604,390,010.40/906,585,015.60 = 195,487,495.20/x
  3. Step 3: Cross multiply
    604,390,010.40x = 906,585,015.60 × 195,487,495.20
  4. Step 4: Simplify right side
    604,390,010.40x = 177,226,033,885,496,928
  5. Step 5: Solve for x
    x = 177,226,033,885,496,928/604,390,010.40
  6. Step 6: Final answer
    x = 293,231,242.80

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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.