Home / 1,478,986.93-2,218,725.78-519,193.74

Finding the Fourth Proportional to 1,478,986.93, 2,218,725.78 and 519,193.74

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Solution

The fourth proportional to 1,478,986.93, 2,218,725.78 and 519,193.74 is: 778,876.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,478,986.93 : 2,218,725.78 = 519,193.74 : x
  2. Step 2: Convert to fraction form
    1,478,986.93/2,218,725.78 = 519,193.74/x
  3. Step 3: Cross multiply
    1,478,986.93x = 2,218,725.78 × 519,193.74
  4. Step 4: Simplify right side
    1,478,986.93x = 1,151,948,535,752.62
  5. Step 5: Solve for x
    x = 1,151,948,535,752.62/1,478,986.93
  6. Step 6: Final answer
    x = 778,876.75

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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.