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Finding the Fourth Proportional to 632,613.87, 873,006.12 and 346,135.10

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Solution

The fourth proportional to 632,613.87, 873,006.12 and 346,135.10 is: 477,665.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,613.87 : 873,006.12 = 346,135.10 : x
  2. Step 2: Convert to fraction form
    632,613.87/873,006.12 = 346,135.10/x
  3. Step 3: Cross multiply
    632,613.87x = 873,006.12 × 346,135.10
  4. Step 4: Simplify right side
    632,613.87x = 302,178,056,281.78
  5. Step 5: Solve for x
    x = 302,178,056,281.78/632,613.87
  6. Step 6: Final answer
    x = 477,665.87

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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.