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Finding the Fourth Proportional to 1,051,573,959.03, 1,443,572,964.44 and 902,636,511.91

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Solution

The fourth proportional to 1,051,573,959.03, 1,443,572,964.44 and 902,636,511.91 is: 1,239,115,569.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,051,573,959.03 : 1,443,572,964.44 = 902,636,511.91 : x
  2. Step 2: Convert to fraction form
    1,051,573,959.03/1,443,572,964.44 = 902,636,511.91/x
  3. Step 3: Cross multiply
    1,051,573,959.03x = 1,443,572,964.44 × 902,636,511.91
  4. Step 4: Simplify right side
    1,051,573,959.03x = 1,303,021,665,309,700,096
  5. Step 5: Solve for x
    x = 1,303,021,665,309,700,096/1,051,573,959.03
  6. Step 6: Final answer
    x = 1,239,115,569.69

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.