Home / 930,610.76-1,283,915.79-608,509.40

Finding the Fourth Proportional to 930,610.76, 1,283,915.79 and 608,509.40

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Solution

The fourth proportional to 930,610.76, 1,283,915.79 and 608,509.40 is: 839,529.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    930,610.76 : 1,283,915.79 = 608,509.40 : x
  2. Step 2: Convert to fraction form
    930,610.76/1,283,915.79 = 608,509.40/x
  3. Step 3: Cross multiply
    930,610.76x = 1,283,915.79 × 608,509.40
  4. Step 4: Simplify right side
    930,610.76x = 781,274,820,603.85
  5. Step 5: Solve for x
    x = 781,274,820,603.85/930,610.76
  6. Step 6: Final answer
    x = 839,529.11

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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.