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Finding the Fourth Proportional to 526,966.65, 727,214.40 and 285,248.48

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Solution

The fourth proportional to 526,966.65, 727,214.40 and 285,248.48 is: 393,643.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,966.65 : 727,214.40 = 285,248.48 : x
  2. Step 2: Convert to fraction form
    526,966.65/727,214.40 = 285,248.48/x
  3. Step 3: Cross multiply
    526,966.65x = 727,214.40 × 285,248.48
  4. Step 4: Simplify right side
    526,966.65x = 207,436,798,598.04
  5. Step 5: Solve for x
    x = 207,436,798,598.04/526,966.65
  6. Step 6: Final answer
    x = 393,643.12

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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.