Home / 1,161,867.53-1,603,345.20-645,608.07

Finding the Fourth Proportional to 1,161,867.53, 1,603,345.20 and 645,608.07

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Solution

The fourth proportional to 1,161,867.53, 1,603,345.20 and 645,608.07 is: 890,921.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,161,867.53 : 1,603,345.20 = 645,608.07 : x
  2. Step 2: Convert to fraction form
    1,161,867.53/1,603,345.20 = 645,608.07/x
  3. Step 3: Cross multiply
    1,161,867.53x = 1,603,345.20 × 645,608.07
  4. Step 4: Simplify right side
    1,161,867.53x = 1,035,132,600,115.76
  5. Step 5: Solve for x
    x = 1,035,132,600,115.76/1,161,867.53
  6. Step 6: Final answer
    x = 890,921.36

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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.