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Finding the Fourth Proportional to 1,229,253,974.07, 1,695,298,411.50 and 871,313,763.93

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Solution

The fourth proportional to 1,229,253,974.07, 1,695,298,411.50 and 871,313,763.93 is: 1,201,653,092.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,229,253,974.07 : 1,695,298,411.50 = 871,313,763.93 : x
  2. Step 2: Convert to fraction form
    1,229,253,974.07/1,695,298,411.50 = 871,313,763.93/x
  3. Step 3: Cross multiply
    1,229,253,974.07x = 1,695,298,411.50 × 871,313,763.93
  4. Step 4: Simplify right side
    1,229,253,974.07x = 1,477,136,839,908,614,912
  5. Step 5: Solve for x
    x = 1,477,136,839,908,614,912/1,229,253,974.07
  6. Step 6: Final answer
    x = 1,201,653,092.91

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Double scale
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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.