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Finding the Fourth Proportional to 602,870.48, 831,957.98 and 330,943

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Solution

The fourth proportional to 602,870.48, 831,957.98 and 330,943 is: 456,699.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,870.48 : 831,957.98 = 330,943 : x
  2. Step 2: Convert to fraction form
    602,870.48/831,957.98 = 330,943/x
  3. Step 3: Cross multiply
    602,870.48x = 831,957.98 × 330,943
  4. Step 4: Simplify right side
    602,870.48x = 275,330,668,120.43
  5. Step 5: Solve for x
    x = 275,330,668,120.43/602,870.48
  6. Step 6: Final answer
    x = 456,699.54

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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.