Home / 628,767.81-943,151.72-155,457.27

Finding the Fourth Proportional to 628,767.81, 943,151.72 and 155,457.27

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Solution

The fourth proportional to 628,767.81, 943,151.72 and 155,457.27 is: 233,185.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,767.81 : 943,151.72 = 155,457.27 : x
  2. Step 2: Convert to fraction form
    628,767.81/943,151.72 = 155,457.27/x
  3. Step 3: Cross multiply
    628,767.81x = 943,151.72 × 155,457.27
  4. Step 4: Simplify right side
    628,767.81x = 146,619,790,809.72
  5. Step 5: Solve for x
    x = 146,619,790,809.72/628,767.81
  6. Step 6: Final answer
    x = 233,185.91

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Double scale
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Similar ratio
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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.