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Finding the Fourth Proportional to 602,339.84, 831,089.59 and 360,530.54

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Solution

The fourth proportional to 602,339.84, 831,089.59 and 360,530.54 is: 497,448.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,339.84 : 831,089.59 = 360,530.54 : x
  2. Step 2: Convert to fraction form
    602,339.84/831,089.59 = 360,530.54/x
  3. Step 3: Cross multiply
    602,339.84x = 831,089.59 × 360,530.54
  4. Step 4: Simplify right side
    602,339.84x = 299,633,173,614.30
  5. Step 5: Solve for x
    x = 299,633,173,614.30/602,339.84
  6. Step 6: Final answer
    x = 497,448.71

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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.