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Finding the Fourth Proportional to 417,130.38, 620,329.58 and 403,844.22

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Solution

The fourth proportional to 417,130.38, 620,329.58 and 403,844.22 is: 600,571.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,130.38 : 620,329.58 = 403,844.22 : x
  2. Step 2: Convert to fraction form
    417,130.38/620,329.58 = 403,844.22/x
  3. Step 3: Cross multiply
    417,130.38x = 620,329.58 × 403,844.22
  4. Step 4: Simplify right side
    417,130.38x = 250,516,510,257.16
  5. Step 5: Solve for x
    x = 250,516,510,257.16/417,130.38
  6. Step 6: Final answer
    x = 600,571.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.