Home / 913,467,998.75-1,260,597,931.50-495,785,290.91

Finding the Fourth Proportional to 913,467,998.75, 1,260,597,931.50 and 495,785,290.91

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Solution

The fourth proportional to 913,467,998.75, 1,260,597,931.50 and 495,785,290.91 is: 684,190,265.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,467,998.75 : 1,260,597,931.50 = 495,785,290.91 : x
  2. Step 2: Convert to fraction form
    913,467,998.75/1,260,597,931.50 = 495,785,290.91/x
  3. Step 3: Cross multiply
    913,467,998.75x = 1,260,597,931.50 × 495,785,290.91
  4. Step 4: Simplify right side
    913,467,998.75x = 624,985,912,182,968,704
  5. Step 5: Solve for x
    x = 624,985,912,182,968,704/913,467,998.75
  6. Step 6: Final answer
    x = 684,190,265.06

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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.