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Finding the Fourth Proportional to 529,873.60, 794,810.40 and 521,125.60

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Solution

The fourth proportional to 529,873.60, 794,810.40 and 521,125.60 is: 781,688.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,873.60 : 794,810.40 = 521,125.60 : x
  2. Step 2: Convert to fraction form
    529,873.60/794,810.40 = 521,125.60/x
  3. Step 3: Cross multiply
    529,873.60x = 794,810.40 × 521,125.60
  4. Step 4: Simplify right side
    529,873.60x = 414,196,046,586.24
  5. Step 5: Solve for x
    x = 414,196,046,586.24/529,873.60
  6. Step 6: Final answer
    x = 781,688.40

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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.