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Finding the Fourth Proportional to 640,064,116.40, 960,096,174.60 and 614,981,850.80

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Solution

The fourth proportional to 640,064,116.40, 960,096,174.60 and 614,981,850.80 is: 922,472,776.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,064,116.40 : 960,096,174.60 = 614,981,850.80 : x
  2. Step 2: Convert to fraction form
    640,064,116.40/960,096,174.60 = 614,981,850.80/x
  3. Step 3: Cross multiply
    640,064,116.40x = 960,096,174.60 × 614,981,850.80
  4. Step 4: Simplify right side
    640,064,116.40x = 590,441,722,401,507,968
  5. Step 5: Solve for x
    x = 590,441,722,401,507,968/640,064,116.40
  6. Step 6: Final answer
    x = 922,472,776.20

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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.