Home / 839,285.92-1,259,300.99-439,831.72

Finding the Fourth Proportional to 839,285.92, 1,259,300.99 and 439,831.72

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Solution

The fourth proportional to 839,285.92, 1,259,300.99 and 439,831.72 is: 659,942.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,285.92 : 1,259,300.99 = 439,831.72 : x
  2. Step 2: Convert to fraction form
    839,285.92/1,259,300.99 = 439,831.72/x
  3. Step 3: Cross multiply
    839,285.92x = 1,259,300.99 × 439,831.72
  4. Step 4: Simplify right side
    839,285.92x = 553,880,518,230.24
  5. Step 5: Solve for x
    x = 553,880,518,230.24/839,285.92
  6. Step 6: Final answer
    x = 659,942.58

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1.5x scale

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.