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Finding the Fourth Proportional to 292,207.80, 438,311.70 and 114,623.40

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Solution

The fourth proportional to 292,207.80, 438,311.70 and 114,623.40 is: 171,935.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,207.80 : 438,311.70 = 114,623.40 : x
  2. Step 2: Convert to fraction form
    292,207.80/438,311.70 = 114,623.40/x
  3. Step 3: Cross multiply
    292,207.80x = 438,311.70 × 114,623.40
  4. Step 4: Simplify right side
    292,207.80x = 50,240,777,313.78
  5. Step 5: Solve for x
    x = 50,240,777,313.78/292,207.80
  6. Step 6: Final answer
    x = 171,935.10

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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.