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Finding the Fourth Proportional to 631,697.50, 947,276.52 and 365,641.66

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Solution

The fourth proportional to 631,697.50, 947,276.52 and 365,641.66 is: 548,306.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,697.50 : 947,276.52 = 365,641.66 : x
  2. Step 2: Convert to fraction form
    631,697.50/947,276.52 = 365,641.66/x
  3. Step 3: Cross multiply
    631,697.50x = 947,276.52 × 365,641.66
  4. Step 4: Simplify right side
    631,697.50x = 346,363,759,251.82
  5. Step 5: Solve for x
    x = 346,363,759,251.82/631,697.50
  6. Step 6: Final answer
    x = 548,306.36

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1.5x scale

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.