Home / 1,285,866.18-1,927,449.09-432,641.64

Finding the Fourth Proportional to 1,285,866.18, 1,927,449.09 and 432,641.64

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Solution

The fourth proportional to 1,285,866.18, 1,927,449.09 and 432,641.64 is: 648,508.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285,866.18 : 1,927,449.09 = 432,641.64 : x
  2. Step 2: Convert to fraction form
    1,285,866.18/1,927,449.09 = 432,641.64/x
  3. Step 3: Cross multiply
    1,285,866.18x = 1,927,449.09 × 432,641.64
  4. Step 4: Simplify right side
    1,285,866.18x = 833,894,726,758.47
  5. Step 5: Solve for x
    x = 833,894,726,758.47/1,285,866.18
  6. Step 6: Final answer
    x = 648,508.17

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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.