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Finding the Fourth Proportional to 406,312.53, 560,525.16 and 263,118.69

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Solution

The fourth proportional to 406,312.53, 560,525.16 and 263,118.69 is: 362,983.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,312.53 : 560,525.16 = 263,118.69 : x
  2. Step 2: Convert to fraction form
    406,312.53/560,525.16 = 263,118.69/x
  3. Step 3: Cross multiply
    406,312.53x = 560,525.16 × 263,118.69
  4. Step 4: Simplify right side
    406,312.53x = 147,484,645,811.24
  5. Step 5: Solve for x
    x = 147,484,645,811.24/406,312.53
  6. Step 6: Final answer
    x = 362,983.26

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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.