Home / 623,951.20-936,099.60-413,999.20

Finding the Fourth Proportional to 623,951.20, 936,099.60 and 413,999.20

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Solution

The fourth proportional to 623,951.20, 936,099.60 and 413,999.20 is: 621,113.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,951.20 : 936,099.60 = 413,999.20 : x
  2. Step 2: Convert to fraction form
    623,951.20/936,099.60 = 413,999.20/x
  3. Step 3: Cross multiply
    623,951.20x = 936,099.60 × 413,999.20
  4. Step 4: Simplify right side
    623,951.20x = 387,544,485,520.32
  5. Step 5: Solve for x
    x = 387,544,485,520.32/623,951.20
  6. Step 6: Final answer
    x = 621,113.45

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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.