Home / 817,767.46-1,128,519.21-455,183.62

Finding the Fourth Proportional to 817,767.46, 1,128,519.21 and 455,183.62

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Solution

The fourth proportional to 817,767.46, 1,128,519.21 and 455,183.62 is: 628,153.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,767.46 : 1,128,519.21 = 455,183.62 : x
  2. Step 2: Convert to fraction form
    817,767.46/1,128,519.21 = 455,183.62/x
  3. Step 3: Cross multiply
    817,767.46x = 1,128,519.21 × 455,183.62
  4. Step 4: Simplify right side
    817,767.46x = 513,683,459,247.34
  5. Step 5: Solve for x
    x = 513,683,459,247.34/817,767.46
  6. Step 6: Final answer
    x = 628,153.46

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Double scale
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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.