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Finding the Fourth Proportional to 633,064.56, 873,640.08 and 346,580.16

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Solution

The fourth proportional to 633,064.56, 873,640.08 and 346,580.16 is: 478,286.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,064.56 : 873,640.08 = 346,580.16 : x
  2. Step 2: Convert to fraction form
    633,064.56/873,640.08 = 346,580.16/x
  3. Step 3: Cross multiply
    633,064.56x = 873,640.08 × 346,580.16
  4. Step 4: Simplify right side
    633,064.56x = 302,786,318,708.81
  5. Step 5: Solve for x
    x = 302,786,318,708.81/633,064.56
  6. Step 6: Final answer
    x = 478,286.64

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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.