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Finding the Fourth Proportional to 355,677.40, 533,904.90 and 222,707.80

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Solution

The fourth proportional to 355,677.40, 533,904.90 and 222,707.80 is: 334,305.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,677.40 : 533,904.90 = 222,707.80 : x
  2. Step 2: Convert to fraction form
    355,677.40/533,904.90 = 222,707.80/x
  3. Step 3: Cross multiply
    355,677.40x = 533,904.90 × 222,707.80
  4. Step 4: Simplify right side
    355,677.40x = 118,904,785,688.22
  5. Step 5: Solve for x
    x = 118,904,785,688.22/355,677.40
  6. Step 6: Final answer
    x = 334,305.15

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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.