Home / 611,455.20-913,065.41-499,357.95

Finding the Fourth Proportional to 611,455.20, 913,065.41 and 499,357.95

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Solution

The fourth proportional to 611,455.20, 913,065.41 and 499,357.95 is: 745,674.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,455.20 : 913,065.41 = 499,357.95 : x
  2. Step 2: Convert to fraction form
    611,455.20/913,065.41 = 499,357.95/x
  3. Step 3: Cross multiply
    611,455.20x = 913,065.41 × 499,357.95
  4. Step 4: Simplify right side
    611,455.20x = 455,946,468,856.72
  5. Step 5: Solve for x
    x = 455,946,468,856.72/611,455.20
  6. Step 6: Final answer
    x = 745,674.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.