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Finding the Fourth Proportional to 310,522.80, 465,784.20 and 216,044.40

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Solution

The fourth proportional to 310,522.80, 465,784.20 and 216,044.40 is: 324,066.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,522.80 : 465,784.20 = 216,044.40 : x
  2. Step 2: Convert to fraction form
    310,522.80/465,784.20 = 216,044.40/x
  3. Step 3: Cross multiply
    310,522.80x = 465,784.20 × 216,044.40
  4. Step 4: Simplify right side
    310,522.80x = 100,630,068,018.48
  5. Step 5: Solve for x
    x = 100,630,068,018.48/310,522.80
  6. Step 6: Final answer
    x = 324,066.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.