Home / 554,236-764,845.70-403,459.36

Finding the Fourth Proportional to 554,236, 764,845.70 and 403,459.36

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Solution

The fourth proportional to 554,236, 764,845.70 and 403,459.36 is: 556,773.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,236 : 764,845.70 = 403,459.36 : x
  2. Step 2: Convert to fraction form
    554,236/764,845.70 = 403,459.36/x
  3. Step 3: Cross multiply
    554,236x = 764,845.70 × 403,459.36
  4. Step 4: Simplify right side
    554,236x = 308,584,156,620.75
  5. Step 5: Solve for x
    x = 308,584,156,620.75/554,236
  6. Step 6: Final answer
    x = 556,773.93

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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.