Home / 1,285,454.09-1,927,792.80-386,657.16

Finding the Fourth Proportional to 1,285,454.09, 1,927,792.80 and 386,657.16

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Solution

The fourth proportional to 1,285,454.09, 1,927,792.80 and 386,657.16 is: 579,868.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285,454.09 : 1,927,792.80 = 386,657.16 : x
  2. Step 2: Convert to fraction form
    1,285,454.09/1,927,792.80 = 386,657.16/x
  3. Step 3: Cross multiply
    1,285,454.09x = 1,927,792.80 × 386,657.16
  4. Step 4: Simplify right side
    1,285,454.09x = 745,394,889,116.45
  5. Step 5: Solve for x
    x = 745,394,889,116.45/1,285,454.09
  6. Step 6: Final answer
    x = 579,868.93

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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.