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Finding the Fourth Proportional to 624,661,228.26, 861,529,854.96 and 549,146,093.58

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Solution

The fourth proportional to 624,661,228.26, 861,529,854.96 and 549,146,093.58 is: 757,379,733.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,661,228.26 : 861,529,854.96 = 549,146,093.58 : x
  2. Step 2: Convert to fraction form
    624,661,228.26/861,529,854.96 = 549,146,093.58/x
  3. Step 3: Cross multiply
    624,661,228.26x = 861,529,854.96 × 549,146,093.58
  4. Step 4: Simplify right side
    624,661,228.26x = 473,105,754,353,828,032
  5. Step 5: Solve for x
    x = 473,105,754,353,828,032/624,661,228.26
  6. Step 6: Final answer
    x = 757,379,733.13

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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.