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Finding the Fourth Proportional to 909,357, 1,254,391.76 and 569,234.76

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Solution

The fourth proportional to 909,357, 1,254,391.76 and 569,234.76 is: 785,217.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,357 : 1,254,391.76 = 569,234.76 : x
  2. Step 2: Convert to fraction form
    909,357/1,254,391.76 = 569,234.76/x
  3. Step 3: Cross multiply
    909,357x = 1,254,391.76 × 569,234.76
  4. Step 4: Simplify right side
    909,357x = 714,043,392,449.58
  5. Step 5: Solve for x
    x = 714,043,392,449.58/909,357
  6. Step 6: Final answer
    x = 785,217.90

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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.