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Finding the Fourth Proportional to 1,890,831.10, 2,833,881.45 and 944,465.98

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Solution

The fourth proportional to 1,890,831.10, 2,833,881.45 and 944,465.98 is: 1,415,517.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,890,831.10 : 2,833,881.45 = 944,465.98 : x
  2. Step 2: Convert to fraction form
    1,890,831.10/2,833,881.45 = 944,465.98/x
  3. Step 3: Cross multiply
    1,890,831.10x = 2,833,881.45 × 944,465.98
  4. Step 4: Simplify right side
    1,890,831.10x = 2,676,504,620,878.07
  5. Step 5: Solve for x
    x = 2,676,504,620,878.07/1,890,831.10
  6. Step 6: Final answer
    x = 1,415,517.56

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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.