Home / 623,967.20-936,123.60-414,015.20

Finding the Fourth Proportional to 623,967.20, 936,123.60 and 414,015.20

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Solution

The fourth proportional to 623,967.20, 936,123.60 and 414,015.20 is: 621,137.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,967.20 : 936,123.60 = 414,015.20 : x
  2. Step 2: Convert to fraction form
    623,967.20/936,123.60 = 414,015.20/x
  3. Step 3: Cross multiply
    623,967.20x = 936,123.60 × 414,015.20
  4. Step 4: Simplify right side
    623,967.20x = 387,569,399,478.72
  5. Step 5: Solve for x
    x = 387,569,399,478.72/623,967.20
  6. Step 6: Final answer
    x = 621,137.46

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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.