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Finding the Fourth Proportional to 333,114.90, 498,688.20 and 220,921.80

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Solution

The fourth proportional to 333,114.90, 498,688.20 and 220,921.80 is: 330,730.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    333,114.90 : 498,688.20 = 220,921.80 : x
  2. Step 2: Convert to fraction form
    333,114.90/498,688.20 = 220,921.80/x
  3. Step 3: Cross multiply
    333,114.90x = 498,688.20 × 220,921.80
  4. Step 4: Simplify right side
    333,114.90x = 110,171,094,782.76
  5. Step 5: Solve for x
    x = 110,171,094,782.76/333,114.90
  6. Step 6: Final answer
    x = 330,730.01

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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.