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Finding the Fourth Proportional to 292,267.20, 437,623.20 and 186,513.60

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Solution

The fourth proportional to 292,267.20, 437,623.20 and 186,513.60 is: 279,274.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,267.20 : 437,623.20 = 186,513.60 : x
  2. Step 2: Convert to fraction form
    292,267.20/437,623.20 = 186,513.60/x
  3. Step 3: Cross multiply
    292,267.20x = 437,623.20 × 186,513.60
  4. Step 4: Simplify right side
    292,267.20x = 81,622,678,475.52
  5. Step 5: Solve for x
    x = 81,622,678,475.52/292,267.20
  6. Step 6: Final answer
    x = 279,274.17

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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.