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Finding the Fourth Proportional to 911,054.48, 1,257,264.57 and 503,166.48

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Solution

The fourth proportional to 911,054.48, 1,257,264.57 and 503,166.48 is: 694,374.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,054.48 : 1,257,264.57 = 503,166.48 : x
  2. Step 2: Convert to fraction form
    911,054.48/1,257,264.57 = 503,166.48/x
  3. Step 3: Cross multiply
    911,054.48x = 1,257,264.57 × 503,166.48
  4. Step 4: Simplify right side
    911,054.48x = 632,613,388,115.61
  5. Step 5: Solve for x
    x = 632,613,388,115.61/911,054.48
  6. Step 6: Final answer
    x = 694,374.93

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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.