Home / 622,911.60-933,784.20-487,900.80

Finding the Fourth Proportional to 622,911.60, 933,784.20 and 487,900.80

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Solution

The fourth proportional to 622,911.60, 933,784.20 and 487,900.80 is: 731,394.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,911.60 : 933,784.20 = 487,900.80 : x
  2. Step 2: Convert to fraction form
    622,911.60/933,784.20 = 487,900.80/x
  3. Step 3: Cross multiply
    622,911.60x = 933,784.20 × 487,900.80
  4. Step 4: Simplify right side
    622,911.60x = 455,594,058,207.36
  5. Step 5: Solve for x
    x = 455,594,058,207.36/622,911.60
  6. Step 6: Final answer
    x = 731,394.40

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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.