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Finding the Fourth Proportional to 616,196.95, 850,206.06 and 357,920.43

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Solution

The fourth proportional to 616,196.95, 850,206.06 and 357,920.43 is: 493,845.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,196.95 : 850,206.06 = 357,920.43 : x
  2. Step 2: Convert to fraction form
    616,196.95/850,206.06 = 357,920.43/x
  3. Step 3: Cross multiply
    616,196.95x = 850,206.06 × 357,920.43
  4. Step 4: Simplify right side
    616,196.95x = 304,306,118,583.81
  5. Step 5: Solve for x
    x = 304,306,118,583.81/616,196.95
  6. Step 6: Final answer
    x = 493,845.54

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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.