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Finding the Fourth Proportional to 1,123,324,494.51, 1,683,881,334.77 and 656,393,346.03

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Solution

The fourth proportional to 1,123,324,494.51, 1,683,881,334.77 and 656,393,346.03 is: 983,944,095.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,123,324,494.51 : 1,683,881,334.77 = 656,393,346.03 : x
  2. Step 2: Convert to fraction form
    1,123,324,494.51/1,683,881,334.77 = 656,393,346.03/x
  3. Step 3: Cross multiply
    1,123,324,494.51x = 1,683,881,334.77 × 656,393,346.03
  4. Step 4: Simplify right side
    1,123,324,494.51x = 1,105,288,503,643,860,992
  5. Step 5: Solve for x
    x = 1,105,288,503,643,860,992/1,123,324,494.51
  6. Step 6: Final answer
    x = 983,944,095.45

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Double scale
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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.