Home / 1,285,868.19-1,927,452.09-432,643.64

Finding the Fourth Proportional to 1,285,868.19, 1,927,452.09 and 432,643.64

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Solution

The fourth proportional to 1,285,868.19, 1,927,452.09 and 432,643.64 is: 648,511.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285,868.19 : 1,927,452.09 = 432,643.64 : x
  2. Step 2: Convert to fraction form
    1,285,868.19/1,927,452.09 = 432,643.64/x
  3. Step 3: Cross multiply
    1,285,868.19x = 1,927,452.09 × 432,643.64
  4. Step 4: Simplify right side
    1,285,868.19x = 833,899,888,143.21
  5. Step 5: Solve for x
    x = 833,899,888,143.21/1,285,868.19
  6. Step 6: Final answer
    x = 648,511.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.