Home / 1,677,729.52-2,315,495.28-989,595.76

Finding the Fourth Proportional to 1,677,729.52, 2,315,495.28 and 989,595.76

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Solution

The fourth proportional to 1,677,729.52, 2,315,495.28 and 989,595.76 is: 1,365,776.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,677,729.52 : 2,315,495.28 = 989,595.76 : x
  2. Step 2: Convert to fraction form
    1,677,729.52/2,315,495.28 = 989,595.76/x
  3. Step 3: Cross multiply
    1,677,729.52x = 2,315,495.28 × 989,595.76
  4. Step 4: Simplify right side
    1,677,729.52x = 2,291,404,311,388.01
  5. Step 5: Solve for x
    x = 2,291,404,311,388.01/1,677,729.52
  6. Step 6: Final answer
    x = 1,365,776.95

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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.