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Finding the Fourth Proportional to 602,614.22, 831,605.34 and 330,686.66

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Solution

The fourth proportional to 602,614.22, 831,605.34 and 330,686.66 is: 456,346.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,614.22 : 831,605.34 = 330,686.66 : x
  2. Step 2: Convert to fraction form
    602,614.22/831,605.34 = 330,686.66/x
  3. Step 3: Cross multiply
    602,614.22x = 831,605.34 × 330,686.66
  4. Step 4: Simplify right side
    602,614.22x = 275,000,792,322.76
  5. Step 5: Solve for x
    x = 275,000,792,322.76/602,614.22
  6. Step 6: Final answer
    x = 456,346.34

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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.