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Finding the Fourth Proportional to 367,789.68, 507,776.19 and 291,616.47

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Solution

The fourth proportional to 367,789.68, 507,776.19 and 291,616.47 is: 402,610.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,789.68 : 507,776.19 = 291,616.47 : x
  2. Step 2: Convert to fraction form
    367,789.68/507,776.19 = 291,616.47/x
  3. Step 3: Cross multiply
    367,789.68x = 507,776.19 × 291,616.47
  4. Step 4: Simplify right side
    367,789.68x = 148,075,897,538.97
  5. Step 5: Solve for x
    x = 148,075,897,538.97/367,789.68
  6. Step 6: Final answer
    x = 402,610.26

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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.