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Finding the Fourth Proportional to 907,892.40, 1,361,838.60 and 243,044.40

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Solution

The fourth proportional to 907,892.40, 1,361,838.60 and 243,044.40 is: 364,566.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,892.40 : 1,361,838.60 = 243,044.40 : x
  2. Step 2: Convert to fraction form
    907,892.40/1,361,838.60 = 243,044.40/x
  3. Step 3: Cross multiply
    907,892.40x = 1,361,838.60 × 243,044.40
  4. Step 4: Simplify right side
    907,892.40x = 330,987,245,433.84
  5. Step 5: Solve for x
    x = 330,987,245,433.84/907,892.40
  6. Step 6: Final answer
    x = 364,566.60

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Double scale
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Similar ratio
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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.