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Finding the Fourth Proportional to 868,997,363.60, 1,303,496,045.40 and 756,757,024.40

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Solution

The fourth proportional to 868,997,363.60, 1,303,496,045.40 and 756,757,024.40 is: 1,135,135,536.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,997,363.60 : 1,303,496,045.40 = 756,757,024.40 : x
  2. Step 2: Convert to fraction form
    868,997,363.60/1,303,496,045.40 = 756,757,024.40/x
  3. Step 3: Cross multiply
    868,997,363.60x = 1,303,496,045.40 × 756,757,024.40
  4. Step 4: Simplify right side
    868,997,363.60x = 986,429,788,634,071,296
  5. Step 5: Solve for x
    x = 986,429,788,634,071,296/868,997,363.60
  6. Step 6: Final answer
    x = 1,135,135,536.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.