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Finding the Fourth Proportional to 480,867.63, 663,539.91 and 265,978.47

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Solution

The fourth proportional to 480,867.63, 663,539.91 and 265,978.47 is: 367,018.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,867.63 : 663,539.91 = 265,978.47 : x
  2. Step 2: Convert to fraction form
    480,867.63/663,539.91 = 265,978.47/x
  3. Step 3: Cross multiply
    480,867.63x = 663,539.91 × 265,978.47
  4. Step 4: Simplify right side
    480,867.63x = 176,487,330,045.74
  5. Step 5: Solve for x
    x = 176,487,330,045.74/480,867.63
  6. Step 6: Final answer
    x = 367,018.53

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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.