Home / 419,124.82-577,290.40-322,143.21

Finding the Fourth Proportional to 419,124.82, 577,290.40 and 322,143.21

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Solution

The fourth proportional to 419,124.82, 577,290.40 and 322,143.21 is: 443,710.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,124.82 : 577,290.40 = 322,143.21 : x
  2. Step 2: Convert to fraction form
    419,124.82/577,290.40 = 322,143.21/x
  3. Step 3: Cross multiply
    419,124.82x = 577,290.40 × 322,143.21
  4. Step 4: Simplify right side
    419,124.82x = 185,970,182,558.18
  5. Step 5: Solve for x
    x = 185,970,182,558.18/419,124.82
  6. Step 6: Final answer
    x = 443,710.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.