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Finding the Fourth Proportional to 484,764.84, 725,780.19 and 256,543.49

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Solution

The fourth proportional to 484,764.84, 725,780.19 and 256,543.49 is: 384,091.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,764.84 : 725,780.19 = 256,543.49 : x
  2. Step 2: Convert to fraction form
    484,764.84/725,780.19 = 256,543.49/x
  3. Step 3: Cross multiply
    484,764.84x = 725,780.19 × 256,543.49
  4. Step 4: Simplify right side
    484,764.84x = 186,194,182,915.46
  5. Step 5: Solve for x
    x = 186,194,182,915.46/484,764.84
  6. Step 6: Final answer
    x = 384,091.76

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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.