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Finding the Fourth Proportional to 492,206.09, 679,244.87 and 265,851.59

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Solution

The fourth proportional to 492,206.09, 679,244.87 and 265,851.59 is: 366,875.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,206.09 : 679,244.87 = 265,851.59 : x
  2. Step 2: Convert to fraction form
    492,206.09/679,244.87 = 265,851.59/x
  3. Step 3: Cross multiply
    492,206.09x = 679,244.87 × 265,851.59
  4. Step 4: Simplify right side
    492,206.09x = 180,578,328,688.84
  5. Step 5: Solve for x
    x = 180,578,328,688.84/492,206.09
  6. Step 6: Final answer
    x = 366,875.45

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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.