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Finding the Fourth Proportional to 632,618.71, 873,011.90 and 342,230.19

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Solution

The fourth proportional to 632,618.71, 873,011.90 and 342,230.19 is: 472,276.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,618.71 : 873,011.90 = 342,230.19 : x
  2. Step 2: Convert to fraction form
    632,618.71/873,011.90 = 342,230.19/x
  3. Step 3: Cross multiply
    632,618.71x = 873,011.90 × 342,230.19
  4. Step 4: Simplify right side
    632,618.71x = 298,771,028,409.26
  5. Step 5: Solve for x
    x = 298,771,028,409.26/632,618.71
  6. Step 6: Final answer
    x = 472,276.62

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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.