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Finding the Fourth Proportional to 633,079.72, 873,652.56 and 346,626.46

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Solution

The fourth proportional to 633,079.72, 873,652.56 and 346,626.46 is: 478,345.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,079.72 : 873,652.56 = 346,626.46 : x
  2. Step 2: Convert to fraction form
    633,079.72/873,652.56 = 346,626.46/x
  3. Step 3: Cross multiply
    633,079.72x = 873,652.56 × 346,626.46
  4. Step 4: Simplify right side
    633,079.72x = 302,831,094,142.74
  5. Step 5: Solve for x
    x = 302,831,094,142.74/633,079.72
  6. Step 6: Final answer
    x = 478,345.91

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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.