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Finding the Fourth Proportional to 532,978.23, 735,511.88 and 291,260.84

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Solution

The fourth proportional to 532,978.23, 735,511.88 and 291,260.84 is: 401,941.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,978.23 : 735,511.88 = 291,260.84 : x
  2. Step 2: Convert to fraction form
    532,978.23/735,511.88 = 291,260.84/x
  3. Step 3: Cross multiply
    532,978.23x = 735,511.88 × 291,260.84
  4. Step 4: Simplify right side
    532,978.23x = 214,225,806,542.48
  5. Step 5: Solve for x
    x = 214,225,806,542.48/532,978.23
  6. Step 6: Final answer
    x = 401,941.01

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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.