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Finding the Fourth Proportional to 535,483.90, 802,799.61 and 265,421.98

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Solution

The fourth proportional to 535,483.90, 802,799.61 and 265,421.98 is: 397,921.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,483.90 : 802,799.61 = 265,421.98 : x
  2. Step 2: Convert to fraction form
    535,483.90/802,799.61 = 265,421.98/x
  3. Step 3: Cross multiply
    535,483.90x = 802,799.61 × 265,421.98
  4. Step 4: Simplify right side
    535,483.90x = 213,080,662,029.43
  5. Step 5: Solve for x
    x = 213,080,662,029.43/535,483.90
  6. Step 6: Final answer
    x = 397,921.70

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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.