Home / 923,807.20-1,385,905.20-292,784.80

Finding the Fourth Proportional to 923,807.20, 1,385,905.20 and 292,784.80

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Solution

The fourth proportional to 923,807.20, 1,385,905.20 and 292,784.80 is: 439,238.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    923,807.20 : 1,385,905.20 = 292,784.80 : x
  2. Step 2: Convert to fraction form
    923,807.20/1,385,905.20 = 292,784.80/x
  3. Step 3: Cross multiply
    923,807.20x = 1,385,905.20 × 292,784.80
  4. Step 4: Simplify right side
    923,807.20x = 405,771,976,800.96
  5. Step 5: Solve for x
    x = 405,771,976,800.96/923,807.20
  6. Step 6: Final answer
    x = 439,238.81

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Double scale
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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.