Home / 929,391.39-1,282,560.75-521,436.92

Finding the Fourth Proportional to 929,391.39, 1,282,560.75 and 521,436.92

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Solution

The fourth proportional to 929,391.39, 1,282,560.75 and 521,436.92 is: 719,583.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    929,391.39 : 1,282,560.75 = 521,436.92 : x
  2. Step 2: Convert to fraction form
    929,391.39/1,282,560.75 = 521,436.92/x
  3. Step 3: Cross multiply
    929,391.39x = 1,282,560.75 × 521,436.92
  4. Step 4: Simplify right side
    929,391.39x = 668,774,520,780.09
  5. Step 5: Solve for x
    x = 668,774,520,780.09/929,391.39
  6. Step 6: Final answer
    x = 719,583.30

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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.