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Finding the Fourth Proportional to 581,506.80, 802,361.73 and 339,742.68

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Solution

The fourth proportional to 581,506.80, 802,361.73 and 339,742.68 is: 468,776.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,506.80 : 802,361.73 = 339,742.68 : x
  2. Step 2: Convert to fraction form
    581,506.80/802,361.73 = 339,742.68/x
  3. Step 3: Cross multiply
    581,506.80x = 802,361.73 × 339,742.68
  4. Step 4: Simplify right side
    581,506.80x = 272,596,524,479.64
  5. Step 5: Solve for x
    x = 272,596,524,479.64/581,506.80
  6. Step 6: Final answer
    x = 468,776.16

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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.