Home / 864,359.20-1,192,831.50-477,220.60

Finding the Fourth Proportional to 864,359.20, 1,192,831.50 and 477,220.60

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Solution

The fourth proportional to 864,359.20, 1,192,831.50 and 477,220.60 is: 658,573.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,359.20 : 1,192,831.50 = 477,220.60 : x
  2. Step 2: Convert to fraction form
    864,359.20/1,192,831.50 = 477,220.60/x
  3. Step 3: Cross multiply
    864,359.20x = 1,192,831.50 × 477,220.60
  4. Step 4: Simplify right side
    864,359.20x = 569,243,764,128.90
  5. Step 5: Solve for x
    x = 569,243,764,128.90/864,359.20
  6. Step 6: Final answer
    x = 658,573.15

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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.