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Finding the Fourth Proportional to 602,696.10, 831,718.18 and 330,768.47

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Solution

The fourth proportional to 602,696.10, 831,718.18 and 330,768.47 is: 456,459.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,696.10 : 831,718.18 = 330,768.47 : x
  2. Step 2: Convert to fraction form
    602,696.10/831,718.18 = 330,768.47/x
  3. Step 3: Cross multiply
    602,696.10x = 831,718.18 × 330,768.47
  4. Step 4: Simplify right side
    602,696.10x = 275,106,149,869.79
  5. Step 5: Solve for x
    x = 275,106,149,869.79/602,696.10
  6. Step 6: Final answer
    x = 456,459.15

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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.