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Finding the Fourth Proportional to 873,603.82, 1,308,726.06 and 535,658.86

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Solution

The fourth proportional to 873,603.82, 1,308,726.06 and 535,658.86 is: 802,458.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,603.82 : 1,308,726.06 = 535,658.86 : x
  2. Step 2: Convert to fraction form
    873,603.82/1,308,726.06 = 535,658.86/x
  3. Step 3: Cross multiply
    873,603.82x = 1,308,726.06 × 535,658.86
  4. Step 4: Simplify right side
    873,603.82x = 701,030,709,351.89
  5. Step 5: Solve for x
    x = 701,030,709,351.89/873,603.82
  6. Step 6: Final answer
    x = 802,458.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.