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Finding the Fourth Proportional to 606,909.21, 837,818.15 and 352,211.19

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Solution

The fourth proportional to 606,909.21, 837,818.15 and 352,211.19 is: 486,215.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,909.21 : 837,818.15 = 352,211.19 : x
  2. Step 2: Convert to fraction form
    606,909.21/837,818.15 = 352,211.19/x
  3. Step 3: Cross multiply
    606,909.21x = 837,818.15 × 352,211.19
  4. Step 4: Simplify right side
    606,909.21x = 295,088,925,854.04
  5. Step 5: Solve for x
    x = 295,088,925,854.04/606,909.21
  6. Step 6: Final answer
    x = 486,215.93

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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.