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Finding the Fourth Proportional to 443,384.76, 611,871.78 and 242,180.76

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Solution

The fourth proportional to 443,384.76, 611,871.78 and 242,180.76 is: 334,209.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,384.76 : 611,871.78 = 242,180.76 : x
  2. Step 2: Convert to fraction form
    443,384.76/611,871.78 = 242,180.76/x
  3. Step 3: Cross multiply
    443,384.76x = 611,871.78 × 242,180.76
  4. Step 4: Simplify right side
    443,384.76x = 148,183,572,702.95
  5. Step 5: Solve for x
    x = 148,183,572,702.95/443,384.76
  6. Step 6: Final answer
    x = 334,209.89

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Double scale
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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.