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Finding the Fourth Proportional to 655,448,051.40, 983,172,077.10 and 349,338,035.40

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Solution

The fourth proportional to 655,448,051.40, 983,172,077.10 and 349,338,035.40 is: 524,007,053.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,448,051.40 : 983,172,077.10 = 349,338,035.40 : x
  2. Step 2: Convert to fraction form
    655,448,051.40/983,172,077.10 = 349,338,035.40/x
  3. Step 3: Cross multiply
    655,448,051.40x = 983,172,077.10 × 349,338,035.40
  4. Step 4: Simplify right side
    655,448,051.40x = 343,459,401,874,251,328
  5. Step 5: Solve for x
    x = 343,459,401,874,251,328/655,448,051.40
  6. Step 6: Final answer
    x = 524,007,053.10

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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.