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Finding the Fourth Proportional to 292,075.20, 438,285.60 and 192,523.20

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Solution

The fourth proportional to 292,075.20, 438,285.60 and 192,523.20 is: 288,898.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,075.20 : 438,285.60 = 192,523.20 : x
  2. Step 2: Convert to fraction form
    292,075.20/438,285.60 = 192,523.20/x
  3. Step 3: Cross multiply
    292,075.20x = 438,285.60 × 192,523.20
  4. Step 4: Simplify right side
    292,075.20x = 84,380,146,225.92
  5. Step 5: Solve for x
    x = 84,380,146,225.92/292,075.20
  6. Step 6: Final answer
    x = 288,898.70

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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.