Home / 519,041.40-778,821.30-294,574.20

Finding the Fourth Proportional to 519,041.40, 778,821.30 and 294,574.20

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Solution

The fourth proportional to 519,041.40, 778,821.30 and 294,574.20 is: 442,008.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,041.40 : 778,821.30 = 294,574.20 : x
  2. Step 2: Convert to fraction form
    519,041.40/778,821.30 = 294,574.20/x
  3. Step 3: Cross multiply
    519,041.40x = 778,821.30 × 294,574.20
  4. Step 4: Simplify right side
    519,041.40x = 229,420,661,390.46
  5. Step 5: Solve for x
    x = 229,420,661,390.46/519,041.40
  6. Step 6: Final answer
    x = 442,008.41

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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.