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Finding the Fourth Proportional to 492,655.03, 679,863.65 and 266,300.53

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Solution

The fourth proportional to 492,655.03, 679,863.65 and 266,300.53 is: 367,494.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,655.03 : 679,863.65 = 266,300.53 : x
  2. Step 2: Convert to fraction form
    492,655.03/679,863.65 = 266,300.53/x
  3. Step 3: Cross multiply
    492,655.03x = 679,863.65 × 266,300.53
  4. Step 4: Simplify right side
    492,655.03x = 181,048,051,115.81
  5. Step 5: Solve for x
    x = 181,048,051,115.81/492,655.03
  6. Step 6: Final answer
    x = 367,494.57

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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.