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Finding the Fourth Proportional to 354,404.70, 531,423.45 and 105,054.30

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Solution

The fourth proportional to 354,404.70, 531,423.45 and 105,054.30 is: 157,527.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,404.70 : 531,423.45 = 105,054.30 : x
  2. Step 2: Convert to fraction form
    354,404.70/531,423.45 = 105,054.30/x
  3. Step 3: Cross multiply
    354,404.70x = 531,423.45 × 105,054.30
  4. Step 4: Simplify right side
    354,404.70x = 55,828,318,543.34
  5. Step 5: Solve for x
    x = 55,828,318,543.34/354,404.70
  6. Step 6: Final answer
    x = 157,527.03

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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.