Home / 1,278,522.17-1,765,023.95-933,971.21

Finding the Fourth Proportional to 1,278,522.17, 1,765,023.95 and 933,971.21

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Solution

The fourth proportional to 1,278,522.17, 1,765,023.95 and 933,971.21 is: 1,289,364.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,522.17 : 1,765,023.95 = 933,971.21 : x
  2. Step 2: Convert to fraction form
    1,278,522.17/1,765,023.95 = 933,971.21/x
  3. Step 3: Cross multiply
    1,278,522.17x = 1,765,023.95 × 933,971.21
  4. Step 4: Simplify right side
    1,278,522.17x = 1,648,481,547,770.29
  5. Step 5: Solve for x
    x = 1,648,481,547,770.29/1,278,522.17
  6. Step 6: Final answer
    x = 1,289,364.86

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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.