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Finding the Fourth Proportional to 614,336.46, 847,788.48 and 342,421.85

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Solution

The fourth proportional to 614,336.46, 847,788.48 and 342,421.85 is: 472,544.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,336.46 : 847,788.48 = 342,421.85 : x
  2. Step 2: Convert to fraction form
    614,336.46/847,788.48 = 342,421.85/x
  3. Step 3: Cross multiply
    614,336.46x = 847,788.48 × 342,421.85
  4. Step 4: Simplify right side
    614,336.46x = 290,301,295,491.35
  5. Step 5: Solve for x
    x = 290,301,295,491.35/614,336.46
  6. Step 6: Final answer
    x = 472,544.47

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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.