Home / 440,187.20-660,280.80-377,201.60

Finding the Fourth Proportional to 440,187.20, 660,280.80 and 377,201.60

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Solution

The fourth proportional to 440,187.20, 660,280.80 and 377,201.60 is: 565,802.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,187.20 : 660,280.80 = 377,201.60 : x
  2. Step 2: Convert to fraction form
    440,187.20/660,280.80 = 377,201.60/x
  3. Step 3: Cross multiply
    440,187.20x = 660,280.80 × 377,201.60
  4. Step 4: Simplify right side
    440,187.20x = 249,058,974,209.28
  5. Step 5: Solve for x
    x = 249,058,974,209.28/440,187.20
  6. Step 6: Final answer
    x = 565,802.40

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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.