Home / 1,420,697.34-1,960,591.23-776,159.28

Finding the Fourth Proportional to 1,420,697.34, 1,960,591.23 and 776,159.28

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Solution

The fourth proportional to 1,420,697.34, 1,960,591.23 and 776,159.28 is: 1,071,115.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,697.34 : 1,960,591.23 = 776,159.28 : x
  2. Step 2: Convert to fraction form
    1,420,697.34/1,960,591.23 = 776,159.28/x
  3. Step 3: Cross multiply
    1,420,697.34x = 1,960,591.23 × 776,159.28
  4. Step 4: Simplify right side
    1,420,697.34x = 1,521,731,077,451.11
  5. Step 5: Solve for x
    x = 1,521,731,077,451.11/1,420,697.34
  6. Step 6: Final answer
    x = 1,071,115.60

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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.