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Finding the Fourth Proportional to 461,613.45, 636,263.94 and 308,595.74

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Solution

The fourth proportional to 461,613.45, 636,263.94 and 308,595.74 is: 425,352.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,613.45 : 636,263.94 = 308,595.74 : x
  2. Step 2: Convert to fraction form
    461,613.45/636,263.94 = 308,595.74/x
  3. Step 3: Cross multiply
    461,613.45x = 636,263.94 × 308,595.74
  4. Step 4: Simplify right side
    461,613.45x = 196,348,338,218.30
  5. Step 5: Solve for x
    x = 196,348,338,218.30/461,613.45
  6. Step 6: Final answer
    x = 425,352.29

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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.