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Finding the Fourth Proportional to 616,208.06, 850,221.33 and 357,931.57

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Solution

The fourth proportional to 616,208.06, 850,221.33 and 357,931.57 is: 493,860.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,208.06 : 850,221.33 = 357,931.57 : x
  2. Step 2: Convert to fraction form
    616,208.06/850,221.33 = 357,931.57/x
  3. Step 3: Cross multiply
    616,208.06x = 850,221.33 × 357,931.57
  4. Step 4: Simplify right side
    616,208.06x = 304,321,055,494.39
  5. Step 5: Solve for x
    x = 304,321,055,494.39/616,208.06
  6. Step 6: Final answer
    x = 493,860.88

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1.5x scale

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.