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Finding the Fourth Proportional to 553,734.66, 829,395.58 and 363,980.82

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Solution

The fourth proportional to 553,734.66, 829,395.58 and 363,980.82 is: 545,178.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,734.66 : 829,395.58 = 363,980.82 : x
  2. Step 2: Convert to fraction form
    553,734.66/829,395.58 = 363,980.82/x
  3. Step 3: Cross multiply
    553,734.66x = 829,395.58 × 363,980.82
  4. Step 4: Simplify right side
    553,734.66x = 301,884,083,312.78
  5. Step 5: Solve for x
    x = 301,884,083,312.78/553,734.66
  6. Step 6: Final answer
    x = 545,178.23

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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.