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Finding the Fourth Proportional to 586,475.12, 809,313.57 and 331,831.77

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Solution

The fourth proportional to 586,475.12, 809,313.57 and 331,831.77 is: 457,915.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,475.12 : 809,313.57 = 331,831.77 : x
  2. Step 2: Convert to fraction form
    586,475.12/809,313.57 = 331,831.77/x
  3. Step 3: Cross multiply
    586,475.12x = 809,313.57 × 331,831.77
  4. Step 4: Simplify right side
    586,475.12x = 268,555,954,418.12
  5. Step 5: Solve for x
    x = 268,555,954,418.12/586,475.12
  6. Step 6: Final answer
    x = 457,915.34

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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.