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Finding the Fourth Proportional to 602,798.59, 831,856.80 and 330,877.90

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Solution

The fourth proportional to 602,798.59, 831,856.80 and 330,877.90 is: 456,608.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,798.59 : 831,856.80 = 330,877.90 : x
  2. Step 2: Convert to fraction form
    602,798.59/831,856.80 = 330,877.90/x
  3. Step 3: Cross multiply
    602,798.59x = 831,856.80 × 330,877.90
  4. Step 4: Simplify right side
    602,798.59x = 275,243,031,084.72
  5. Step 5: Solve for x
    x = 275,243,031,084.72/602,798.59
  6. Step 6: Final answer
    x = 456,608.62

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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.