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Finding the Fourth Proportional to 541,209.38, 808,495.44 and 390,160.58

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Solution

The fourth proportional to 541,209.38, 808,495.44 and 390,160.58 is: 582,848.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,209.38 : 808,495.44 = 390,160.58 : x
  2. Step 2: Convert to fraction form
    541,209.38/808,495.44 = 390,160.58/x
  3. Step 3: Cross multiply
    541,209.38x = 808,495.44 × 390,160.58
  4. Step 4: Simplify right side
    541,209.38x = 315,443,049,797.76
  5. Step 5: Solve for x
    x = 315,443,049,797.76/541,209.38
  6. Step 6: Final answer
    x = 582,848.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.