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Finding the Fourth Proportional to 480,145.71, 662,583.21 and 265,281.18

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Solution

The fourth proportional to 480,145.71, 662,583.21 and 265,281.18 is: 366,078.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,145.71 : 662,583.21 = 265,281.18 : x
  2. Step 2: Convert to fraction form
    480,145.71/662,583.21 = 265,281.18/x
  3. Step 3: Cross multiply
    480,145.71x = 662,583.21 × 265,281.18
  4. Step 4: Simplify right side
    480,145.71x = 175,770,855,796.99
  5. Step 5: Solve for x
    x = 175,770,855,796.99/480,145.71
  6. Step 6: Final answer
    x = 366,078.16

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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.