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Finding the Fourth Proportional to 672,684.16, 928,683.84 and 446,638.72

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Solution

The fourth proportional to 672,684.16, 928,683.84 and 446,638.72 is: 616,613.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,684.16 : 928,683.84 = 446,638.72 : x
  2. Step 2: Convert to fraction form
    672,684.16/928,683.84 = 446,638.72/x
  3. Step 3: Cross multiply
    672,684.16x = 928,683.84 × 446,638.72
  4. Step 4: Simplify right side
    672,684.16x = 414,786,161,582.29
  5. Step 5: Solve for x
    x = 414,786,161,582.29/672,684.16
  6. Step 6: Final answer
    x = 616,613.54

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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.