Home / 578,074.20-867,111.30-519,025.20

Finding the Fourth Proportional to 578,074.20, 867,111.30 and 519,025.20

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Solution

The fourth proportional to 578,074.20, 867,111.30 and 519,025.20 is: 778,537.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,074.20 : 867,111.30 = 519,025.20 : x
  2. Step 2: Convert to fraction form
    578,074.20/867,111.30 = 519,025.20/x
  3. Step 3: Cross multiply
    578,074.20x = 867,111.30 × 519,025.20
  4. Step 4: Simplify right side
    578,074.20x = 450,052,615,904.76
  5. Step 5: Solve for x
    x = 450,052,615,904.76/578,074.20
  6. Step 6: Final answer
    x = 778,537.80

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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.