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Finding the Fourth Proportional to 692,768,866.88, 956,013,420.13 and 375,221,213.34

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Solution

The fourth proportional to 692,768,866.88, 956,013,420.13 and 375,221,213.34 is: 517,801,149.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,768,866.88 : 956,013,420.13 = 375,221,213.34 : x
  2. Step 2: Convert to fraction form
    692,768,866.88/956,013,420.13 = 375,221,213.34/x
  3. Step 3: Cross multiply
    692,768,866.88x = 956,013,420.13 × 375,221,213.34
  4. Step 4: Simplify right side
    692,768,866.88x = 358,716,515,470,501,760
  5. Step 5: Solve for x
    x = 358,716,515,470,501,760/692,768,866.88
  6. Step 6: Final answer
    x = 517,801,149.30

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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.