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Finding the Fourth Proportional to 1,008,019,781.44, 1,391,374,750.76 and 584,740,409.36

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Solution

The fourth proportional to 1,008,019,781.44, 1,391,374,750.76 and 584,740,409.36 is: 807,120,114.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,019,781.44 : 1,391,374,750.76 = 584,740,409.36 : x
  2. Step 2: Convert to fraction form
    1,008,019,781.44/1,391,374,750.76 = 584,740,409.36/x
  3. Step 3: Cross multiply
    1,008,019,781.44x = 1,391,374,750.76 × 584,740,409.36
  4. Step 4: Simplify right side
    1,008,019,781.44x = 813,593,041,332,570,368
  5. Step 5: Solve for x
    x = 813,593,041,332,570,368/1,008,019,781.44
  6. Step 6: Final answer
    x = 807,120,114.42

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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.