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Finding the Fourth Proportional to 562,351.67, 776,045.22 and 307,702.79

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Solution

The fourth proportional to 562,351.67, 776,045.22 and 307,702.79 is: 424,629.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,351.67 : 776,045.22 = 307,702.79 : x
  2. Step 2: Convert to fraction form
    562,351.67/776,045.22 = 307,702.79/x
  3. Step 3: Cross multiply
    562,351.67x = 776,045.22 × 307,702.79
  4. Step 4: Simplify right side
    562,351.67x = 238,791,279,360.16
  5. Step 5: Solve for x
    x = 238,791,279,360.16/562,351.67
  6. Step 6: Final answer
    x = 424,629.80

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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.