Home / 728,698,481,384.05-1,005,635,514,732.30-403,537,773,196.25

Finding the Fourth Proportional to 728,698,481,384.05, 1,005,635,514,732.30 and 403,537,773,196.25

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Solution

The fourth proportional to 728,698,481,384.05, 1,005,635,514,732.30 and 403,537,773,196.25 is: 556,899,632,192.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,698,481,384.05 : 1,005,635,514,732.30 = 403,537,773,196.25 : x
  2. Step 2: Convert to fraction form
    728,698,481,384.05/1,005,635,514,732.30 = 403,537,773,196.25/x
  3. Step 3: Cross multiply
    728,698,481,384.05x = 1,005,635,514,732.30 × 403,537,773,196.25
  4. Step 4: Simplify right side
    728,698,481,384.05x = 405,811,916,262,137,034,440,704
  5. Step 5: Solve for x
    x = 405,811,916,262,137,034,440,704/728,698,481,384.05
  6. Step 6: Final answer
    x = 556,899,632,192.67

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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.