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Finding the Fourth Proportional to 423,046.38, 634,365.44 and 245,598.06

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Solution

The fourth proportional to 423,046.38, 634,365.44 and 245,598.06 is: 368,278.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,046.38 : 634,365.44 = 245,598.06 : x
  2. Step 2: Convert to fraction form
    423,046.38/634,365.44 = 245,598.06/x
  3. Step 3: Cross multiply
    423,046.38x = 634,365.44 × 245,598.06
  4. Step 4: Simplify right side
    423,046.38x = 155,798,921,395.05
  5. Step 5: Solve for x
    x = 155,798,921,395.05/423,046.38
  6. Step 6: Final answer
    x = 368,278.58

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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.