Home / 839,639.57-1,158,714.12-457,665.53

Finding the Fourth Proportional to 839,639.57, 1,158,714.12 and 457,665.53

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Solution

The fourth proportional to 839,639.57, 1,158,714.12 and 457,665.53 is: 631,584.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,639.57 : 1,158,714.12 = 457,665.53 : x
  2. Step 2: Convert to fraction form
    839,639.57/1,158,714.12 = 457,665.53/x
  3. Step 3: Cross multiply
    839,639.57x = 1,158,714.12 × 457,665.53
  4. Step 4: Simplify right side
    839,639.57x = 530,303,503,766.39
  5. Step 5: Solve for x
    x = 530,303,503,766.39/839,639.57
  6. Step 6: Final answer
    x = 631,584.70

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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.