Home / 913,558,421.91-1,260,677,996.97-517,072,898.06

Finding the Fourth Proportional to 913,558,421.91, 1,260,677,996.97 and 517,072,898.06

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Solution

The fourth proportional to 913,558,421.91, 1,260,677,996.97 and 517,072,898.06 is: 713,542,133.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,558,421.91 : 1,260,677,996.97 = 517,072,898.06 : x
  2. Step 2: Convert to fraction form
    913,558,421.91/1,260,677,996.97 = 517,072,898.06/x
  3. Step 3: Cross multiply
    913,558,421.91x = 1,260,677,996.97 × 517,072,898.06
  4. Step 4: Simplify right side
    913,558,421.91x = 651,862,425,413,753,856
  5. Step 5: Solve for x
    x = 651,862,425,413,753,856/913,558,421.91
  6. Step 6: Final answer
    x = 713,542,133.46

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Double scale
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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.