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Finding the Fourth Proportional to 531,564.04, 796,782.10 and 261,311.06

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Solution

The fourth proportional to 531,564.04, 796,782.10 and 261,311.06 is: 391,689.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,564.04 : 796,782.10 = 261,311.06 : x
  2. Step 2: Convert to fraction form
    531,564.04/796,782.10 = 261,311.06/x
  3. Step 3: Cross multiply
    531,564.04x = 796,782.10 × 261,311.06
  4. Step 4: Simplify right side
    531,564.04x = 208,207,975,140.03
  5. Step 5: Solve for x
    x = 208,207,975,140.03/531,564.04
  6. Step 6: Final answer
    x = 391,689.35

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.