Home / 624,905.60-862,385.51-383,321.39

Finding the Fourth Proportional to 624,905.60, 862,385.51 and 383,321.39

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Solution

The fourth proportional to 624,905.60, 862,385.51 and 383,321.39 is: 528,993.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,905.60 : 862,385.51 = 383,321.39 : x
  2. Step 2: Convert to fraction form
    624,905.60/862,385.51 = 383,321.39/x
  3. Step 3: Cross multiply
    624,905.60x = 862,385.51 × 383,321.39
  4. Step 4: Simplify right side
    624,905.60x = 330,570,809,055.44
  5. Step 5: Solve for x
    x = 330,570,809,055.44/624,905.60
  6. Step 6: Final answer
    x = 528,993.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.