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Finding the Fourth Proportional to 633,078.72, 873,651.18 and 346,625.46

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Solution

The fourth proportional to 633,078.72, 873,651.18 and 346,625.46 is: 478,344.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,078.72 : 873,651.18 = 346,625.46 : x
  2. Step 2: Convert to fraction form
    633,078.72/873,651.18 = 346,625.46/x
  3. Step 3: Cross multiply
    633,078.72x = 873,651.18 × 346,625.46
  4. Step 4: Simplify right side
    633,078.72x = 302,829,742,147.04
  5. Step 5: Solve for x
    x = 302,829,742,147.04/633,078.72
  6. Step 6: Final answer
    x = 478,344.53

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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.