Home / 579,603.36-869,655.33-313,551.17

Finding the Fourth Proportional to 579,603.36, 869,655.33 and 313,551.17

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Solution

The fourth proportional to 579,603.36, 869,655.33 and 313,551.17 is: 470,462.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,603.36 : 869,655.33 = 313,551.17 : x
  2. Step 2: Convert to fraction form
    579,603.36/869,655.33 = 313,551.17/x
  3. Step 3: Cross multiply
    579,603.36x = 869,655.33 × 313,551.17
  4. Step 4: Simplify right side
    579,603.36x = 272,681,441,869.96
  5. Step 5: Solve for x
    x = 272,681,441,869.96/579,603.36
  6. Step 6: Final answer
    x = 470,462.15

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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.