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Finding the Fourth Proportional to 620,633.22, 930,197.32 and 283,211.52

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Solution

The fourth proportional to 620,633.22, 930,197.32 and 283,211.52 is: 424,473.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,633.22 : 930,197.32 = 283,211.52 : x
  2. Step 2: Convert to fraction form
    620,633.22/930,197.32 = 283,211.52/x
  3. Step 3: Cross multiply
    620,633.22x = 930,197.32 × 283,211.52
  4. Step 4: Simplify right side
    620,633.22x = 263,442,596,897.13
  5. Step 5: Solve for x
    x = 263,442,596,897.13/620,633.22
  6. Step 6: Final answer
    x = 424,473.89

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1.5x scale

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.