Home / 658,603.17-908,914.37-403,919.73

Finding the Fourth Proportional to 658,603.17, 908,914.37 and 403,919.73

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Solution

The fourth proportional to 658,603.17, 908,914.37 and 403,919.73 is: 557,434.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,603.17 : 908,914.37 = 403,919.73 : x
  2. Step 2: Convert to fraction form
    658,603.17/908,914.37 = 403,919.73/x
  3. Step 3: Cross multiply
    658,603.17x = 908,914.37 × 403,919.73
  4. Step 4: Simplify right side
    658,603.17x = 367,128,444,903.92
  5. Step 5: Solve for x
    x = 367,128,444,903.92/658,603.17
  6. Step 6: Final answer
    x = 557,434.98

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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.