Home / 638,297.10-956,631.60-338,921.10

Finding the Fourth Proportional to 638,297.10, 956,631.60 and 338,921.10

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Solution

The fourth proportional to 638,297.10, 956,631.60 and 338,921.10 is: 507,949.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,297.10 : 956,631.60 = 338,921.10 : x
  2. Step 2: Convert to fraction form
    638,297.10/956,631.60 = 338,921.10/x
  3. Step 3: Cross multiply
    638,297.10x = 956,631.60 × 338,921.10
  4. Step 4: Simplify right side
    638,297.10x = 324,222,634,166.76
  5. Step 5: Solve for x
    x = 324,222,634,166.76/638,297.10
  6. Step 6: Final answer
    x = 507,949.41

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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.