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Finding the Fourth Proportional to 492,701.68, 679,928.70 and 266,347.12

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Solution

The fourth proportional to 492,701.68, 679,928.70 and 266,347.12 is: 367,559.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,701.68 : 679,928.70 = 266,347.12 : x
  2. Step 2: Convert to fraction form
    492,701.68/679,928.70 = 266,347.12/x
  3. Step 3: Cross multiply
    492,701.68x = 679,928.70 × 266,347.12
  4. Step 4: Simplify right side
    492,701.68x = 181,097,051,050.34
  5. Step 5: Solve for x
    x = 181,097,051,050.34/492,701.68
  6. Step 6: Final answer
    x = 367,559.23

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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.