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Finding the Fourth Proportional to 620,516.04, 856,311.66 and 352,244.04

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Solution

The fourth proportional to 620,516.04, 856,311.66 and 352,244.04 is: 486,096.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,516.04 : 856,311.66 = 352,244.04 : x
  2. Step 2: Convert to fraction form
    620,516.04/856,311.66 = 352,244.04/x
  3. Step 3: Cross multiply
    620,516.04x = 856,311.66 × 352,244.04
  4. Step 4: Simplify right side
    620,516.04x = 301,630,678,617.51
  5. Step 5: Solve for x
    x = 301,630,678,617.51/620,516.04
  6. Step 6: Final answer
    x = 486,096.51

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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.