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Finding the Fourth Proportional to 907,662.30, 1,361,347.65 and 276,429.30

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Solution

The fourth proportional to 907,662.30, 1,361,347.65 and 276,429.30 is: 414,599.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,662.30 : 1,361,347.65 = 276,429.30 : x
  2. Step 2: Convert to fraction form
    907,662.30/1,361,347.65 = 276,429.30/x
  3. Step 3: Cross multiply
    907,662.30x = 1,361,347.65 × 276,429.30
  4. Step 4: Simplify right side
    907,662.30x = 376,316,377,946.15
  5. Step 5: Solve for x
    x = 376,316,377,946.15/907,662.30
  6. Step 6: Final answer
    x = 414,599.55

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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.