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Finding the Fourth Proportional to 644,153.61, 961,892.63 and 526,059.21

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Solution

The fourth proportional to 644,153.61, 961,892.63 and 526,059.21 is: 785,546.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,153.61 : 961,892.63 = 526,059.21 : x
  2. Step 2: Convert to fraction form
    644,153.61/961,892.63 = 526,059.21/x
  3. Step 3: Cross multiply
    644,153.61x = 961,892.63 × 526,059.21
  4. Step 4: Simplify right side
    644,153.61x = 506,012,478,357.77
  5. Step 5: Solve for x
    x = 506,012,478,357.77/644,153.61
  6. Step 6: Final answer
    x = 785,546.29

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.