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Finding the Fourth Proportional to 832,329,063.72, 1,147,693,843.26 and 530,436,375.45

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Solution

The fourth proportional to 832,329,063.72, 1,147,693,843.26 and 530,436,375.45 is: 731,415,721.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    832,329,063.72 : 1,147,693,843.26 = 530,436,375.45 : x
  2. Step 2: Convert to fraction form
    832,329,063.72/1,147,693,843.26 = 530,436,375.45/x
  3. Step 3: Cross multiply
    832,329,063.72x = 1,147,693,843.26 × 530,436,375.45
  4. Step 4: Simplify right side
    832,329,063.72x = 608,778,562,345,114,752
  5. Step 5: Solve for x
    x = 608,778,562,345,114,752/832,329,063.72
  6. Step 6: Final answer
    x = 731,415,721.11

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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.