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Finding the Fourth Proportional to 358,440.76, 493,580.50 and 350,484.72

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Solution

The fourth proportional to 358,440.76, 493,580.50 and 350,484.72 is: 482,624.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,440.76 : 493,580.50 = 350,484.72 : x
  2. Step 2: Convert to fraction form
    358,440.76/493,580.50 = 350,484.72/x
  3. Step 3: Cross multiply
    358,440.76x = 493,580.50 × 350,484.72
  4. Step 4: Simplify right side
    358,440.76x = 172,992,423,339.96
  5. Step 5: Solve for x
    x = 172,992,423,339.96/358,440.76
  6. Step 6: Final answer
    x = 482,624.86

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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.