Home / 1,989,911.66-2,745,280.75-1,254,624.15

Finding the Fourth Proportional to 1,989,911.66, 2,745,280.75 and 1,254,624.15

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Solution

The fourth proportional to 1,989,911.66, 2,745,280.75 and 1,254,624.15 is: 1,730,878.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,989,911.66 : 2,745,280.75 = 1,254,624.15 : x
  2. Step 2: Convert to fraction form
    1,989,911.66/2,745,280.75 = 1,254,624.15/x
  3. Step 3: Cross multiply
    1,989,911.66x = 2,745,280.75 × 1,254,624.15
  4. Step 4: Simplify right side
    1,989,911.66x = 3,444,295,520,616.91
  5. Step 5: Solve for x
    x = 3,444,295,520,616.91/1,989,911.66
  6. Step 6: Final answer
    x = 1,730,878.61

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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.