Home / 651,837,221.20-977,755,831.80-445,212,960.40

Finding the Fourth Proportional to 651,837,221.20, 977,755,831.80 and 445,212,960.40

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Solution

The fourth proportional to 651,837,221.20, 977,755,831.80 and 445,212,960.40 is: 667,819,440.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,837,221.20 : 977,755,831.80 = 445,212,960.40 : x
  2. Step 2: Convert to fraction form
    651,837,221.20/977,755,831.80 = 445,212,960.40/x
  3. Step 3: Cross multiply
    651,837,221.20x = 977,755,831.80 × 445,212,960.40
  4. Step 4: Simplify right side
    651,837,221.20x = 435,309,568,424,042,432
  5. Step 5: Solve for x
    x = 435,309,568,424,042,432/651,837,221.20
  6. Step 6: Final answer
    x = 667,819,440.60

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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.