Home / 419,090.05-578,345.38-237,801.49

Finding the Fourth Proportional to 419,090.05, 578,345.38 and 237,801.49

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Solution

The fourth proportional to 419,090.05, 578,345.38 and 237,801.49 is: 328,166.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,090.05 : 578,345.38 = 237,801.49 : x
  2. Step 2: Convert to fraction form
    419,090.05/578,345.38 = 237,801.49/x
  3. Step 3: Cross multiply
    419,090.05x = 578,345.38 × 237,801.49
  4. Step 4: Simplify right side
    419,090.05x = 137,531,393,098.62
  5. Step 5: Solve for x
    x = 137,531,393,098.62/419,090.05
  6. Step 6: Final answer
    x = 328,166.69

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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.