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Finding the Fourth Proportional to 633,079.96, 873,652.90 and 346,626.70

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Solution

The fourth proportional to 633,079.96, 873,652.90 and 346,626.70 is: 478,346.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,079.96 : 873,652.90 = 346,626.70 : x
  2. Step 2: Convert to fraction form
    633,079.96/873,652.90 = 346,626.70/x
  3. Step 3: Cross multiply
    633,079.96x = 873,652.90 × 346,626.70
  4. Step 4: Simplify right side
    633,079.96x = 302,831,421,672.43
  5. Step 5: Solve for x
    x = 302,831,421,672.43/633,079.96
  6. Step 6: Final answer
    x = 478,346.25

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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.