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Finding the Fourth Proportional to 648,035.60, 972,053.40 and 529,840.40

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Solution

The fourth proportional to 648,035.60, 972,053.40 and 529,840.40 is: 794,760.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,035.60 : 972,053.40 = 529,840.40 : x
  2. Step 2: Convert to fraction form
    648,035.60/972,053.40 = 529,840.40/x
  3. Step 3: Cross multiply
    648,035.60x = 972,053.40 × 529,840.40
  4. Step 4: Simplify right side
    648,035.60x = 515,033,162,277.36
  5. Step 5: Solve for x
    x = 515,033,162,277.36/648,035.60
  6. Step 6: Final answer
    x = 794,760.60

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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.