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Finding the Fourth Proportional to 462,695.20, 695,425.20 and 401,869.60

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Solution

The fourth proportional to 462,695.20, 695,425.20 and 401,869.60 is: 604,005.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,695.20 : 695,425.20 = 401,869.60 : x
  2. Step 2: Convert to fraction form
    462,695.20/695,425.20 = 401,869.60/x
  3. Step 3: Cross multiply
    462,695.20x = 695,425.20 × 401,869.60
  4. Step 4: Simplify right side
    462,695.20x = 279,470,246,953.92
  5. Step 5: Solve for x
    x = 279,470,246,953.92/462,695.20
  6. Step 6: Final answer
    x = 604,005.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.