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Finding the Fourth Proportional to 663,799,006.36, 916,018,620.36 and 366,434,866.24

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Solution

The fourth proportional to 663,799,006.36, 916,018,620.36 and 366,434,866.24 is: 505,666,862.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,799,006.36 : 916,018,620.36 = 366,434,866.24 : x
  2. Step 2: Convert to fraction form
    663,799,006.36/916,018,620.36 = 366,434,866.24/x
  3. Step 3: Cross multiply
    663,799,006.36x = 916,018,620.36 × 366,434,866.24
  4. Step 4: Simplify right side
    663,799,006.36x = 335,661,160,624,965,952
  5. Step 5: Solve for x
    x = 335,661,160,624,965,952/663,799,006.36
  6. Step 6: Final answer
    x = 505,666,862.12

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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.