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Finding the Fourth Proportional to 735,809.16, 1,015,420.20 and 429,903

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Solution

The fourth proportional to 735,809.16, 1,015,420.20 and 429,903 is: 593,268.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    735,809.16 : 1,015,420.20 = 429,903 : x
  2. Step 2: Convert to fraction form
    735,809.16/1,015,420.20 = 429,903/x
  3. Step 3: Cross multiply
    735,809.16x = 1,015,420.20 × 429,903
  4. Step 4: Simplify right side
    735,809.16x = 436,532,190,240.60
  5. Step 5: Solve for x
    x = 436,532,190,240.60/735,809.16
  6. Step 6: Final answer
    x = 593,268.22

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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.