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Finding the Fourth Proportional to 1,974,804.06, 2,962,058.28 and 712,631.64

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Solution

The fourth proportional to 1,974,804.06, 2,962,058.28 and 712,631.64 is: 1,068,894.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,974,804.06 : 2,962,058.28 = 712,631.64 : x
  2. Step 2: Convert to fraction form
    1,974,804.06/2,962,058.28 = 712,631.64/x
  3. Step 3: Cross multiply
    1,974,804.06x = 2,962,058.28 × 712,631.64
  4. Step 4: Simplify right side
    1,974,804.06x = 2,110,856,449,851.98
  5. Step 5: Solve for x
    x = 2,110,856,449,851.98/1,974,804.06
  6. Step 6: Final answer
    x = 1,068,894.12

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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.