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Finding the Fourth Proportional to 535,618.16, 739,128.32 and 293,894.72

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Solution

The fourth proportional to 535,618.16, 739,128.32 and 293,894.72 is: 405,561.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,618.16 : 739,128.32 = 293,894.72 : x
  2. Step 2: Convert to fraction form
    535,618.16/739,128.32 = 293,894.72/x
  3. Step 3: Cross multiply
    535,618.16x = 739,128.32 × 293,894.72
  4. Step 4: Simplify right side
    535,618.16x = 217,225,910,650.47
  5. Step 5: Solve for x
    x = 217,225,910,650.47/535,618.16
  6. Step 6: Final answer
    x = 405,561.14

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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.