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Finding the Fourth Proportional to 492,242.48, 679,294.92 and 265,888

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Solution

The fourth proportional to 492,242.48, 679,294.92 and 265,888 is: 366,925.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,242.48 : 679,294.92 = 265,888 : x
  2. Step 2: Convert to fraction form
    492,242.48/679,294.92 = 265,888/x
  3. Step 3: Cross multiply
    492,242.48x = 679,294.92 × 265,888
  4. Step 4: Simplify right side
    492,242.48x = 180,616,367,688.96
  5. Step 5: Solve for x
    x = 180,616,367,688.96/492,242.48
  6. Step 6: Final answer
    x = 366,925.60

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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.