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Finding the Fourth Proportional to 545,153.44, 752,306 and 303,432.16

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Solution

The fourth proportional to 545,153.44, 752,306 and 303,432.16 is: 418,733.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,153.44 : 752,306 = 303,432.16 : x
  2. Step 2: Convert to fraction form
    545,153.44/752,306 = 303,432.16/x
  3. Step 3: Cross multiply
    545,153.44x = 752,306 × 303,432.16
  4. Step 4: Simplify right side
    545,153.44x = 228,273,834,560.96
  5. Step 5: Solve for x
    x = 228,273,834,560.96/545,153.44
  6. Step 6: Final answer
    x = 418,733.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.