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Finding the Fourth Proportional to 670,466.97, 999,384.45 and 616,658.57

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Solution

The fourth proportional to 670,466.97, 999,384.45 and 616,658.57 is: 919,178.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,466.97 : 999,384.45 = 616,658.57 : x
  2. Step 2: Convert to fraction form
    670,466.97/999,384.45 = 616,658.57/x
  3. Step 3: Cross multiply
    670,466.97x = 999,384.45 × 616,658.57
  4. Step 4: Simplify right side
    670,466.97x = 616,278,987,458.59
  5. Step 5: Solve for x
    x = 616,278,987,458.59/670,466.97
  6. Step 6: Final answer
    x = 919,178.74

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.