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Finding the Fourth Proportional to 535,486.40, 803,229.60 and 346,529.60

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Solution

The fourth proportional to 535,486.40, 803,229.60 and 346,529.60 is: 519,794.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,486.40 : 803,229.60 = 346,529.60 : x
  2. Step 2: Convert to fraction form
    535,486.40/803,229.60 = 346,529.60/x
  3. Step 3: Cross multiply
    535,486.40x = 803,229.60 × 346,529.60
  4. Step 4: Simplify right side
    535,486.40x = 278,342,831,996.16
  5. Step 5: Solve for x
    x = 278,342,831,996.16/535,486.40
  6. Step 6: Final answer
    x = 519,794.40

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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.