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Finding the Fourth Proportional to 415,195.20, 573,011.70 and 254,156.67

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Solution

The fourth proportional to 415,195.20, 573,011.70 and 254,156.67 is: 350,762.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,195.20 : 573,011.70 = 254,156.67 : x
  2. Step 2: Convert to fraction form
    415,195.20/573,011.70 = 254,156.67/x
  3. Step 3: Cross multiply
    415,195.20x = 573,011.70 × 254,156.67
  4. Step 4: Simplify right side
    415,195.20x = 145,634,745,543.04
  5. Step 5: Solve for x
    x = 145,634,745,543.04/415,195.20
  6. Step 6: Final answer
    x = 350,762.11

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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.