Home / 753,339.50-1,039,616.16-409,178.77

Finding the Fourth Proportional to 753,339.50, 1,039,616.16 and 409,178.77

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Solution

The fourth proportional to 753,339.50, 1,039,616.16 and 409,178.77 is: 564,670.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,339.50 : 1,039,616.16 = 409,178.77 : x
  2. Step 2: Convert to fraction form
    753,339.50/1,039,616.16 = 409,178.77/x
  3. Step 3: Cross multiply
    753,339.50x = 1,039,616.16 × 409,178.77
  4. Step 4: Simplify right side
    753,339.50x = 425,388,859,021.88
  5. Step 5: Solve for x
    x = 425,388,859,021.88/753,339.50
  6. Step 6: Final answer
    x = 564,670.86

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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.