Home / 628,220.26-942,340.38-154,905.76

Finding the Fourth Proportional to 628,220.26, 942,340.38 and 154,905.76

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Solution

The fourth proportional to 628,220.26, 942,340.38 and 154,905.76 is: 232,361.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,220.26 : 942,340.38 = 154,905.76 : x
  2. Step 2: Convert to fraction form
    628,220.26/942,340.38 = 154,905.76/x
  3. Step 3: Cross multiply
    628,220.26x = 942,340.38 × 154,905.76
  4. Step 4: Simplify right side
    628,220.26x = 145,973,952,742.59
  5. Step 5: Solve for x
    x = 145,973,952,742.59/628,220.26
  6. Step 6: Final answer
    x = 232,361.10

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Double scale
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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.