Home / 766,215,427.69-1,057,377,249.99-413,791,384.36

Finding the Fourth Proportional to 766,215,427.69, 1,057,377,249.99 and 413,791,384.36

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Solution

The fourth proportional to 766,215,427.69, 1,057,377,249.99 and 413,791,384.36 is: 571,032,088.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,215,427.69 : 1,057,377,249.99 = 413,791,384.36 : x
  2. Step 2: Convert to fraction form
    766,215,427.69/1,057,377,249.99 = 413,791,384.36/x
  3. Step 3: Cross multiply
    766,215,427.69x = 1,057,377,249.99 × 413,791,384.36
  4. Step 4: Simplify right side
    766,215,427.69x = 437,533,596,064,131,904
  5. Step 5: Solve for x
    x = 437,533,596,064,131,904/766,215,427.69
  6. Step 6: Final answer
    x = 571,032,088.69

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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.