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Finding the Fourth Proportional to 369,076.80, 553,615.20 and 365,966.40

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Solution

The fourth proportional to 369,076.80, 553,615.20 and 365,966.40 is: 548,949.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,076.80 : 553,615.20 = 365,966.40 : x
  2. Step 2: Convert to fraction form
    369,076.80/553,615.20 = 365,966.40/x
  3. Step 3: Cross multiply
    369,076.80x = 553,615.20 × 365,966.40
  4. Step 4: Simplify right side
    369,076.80x = 202,604,561,729.28
  5. Step 5: Solve for x
    x = 202,604,561,729.28/369,076.80
  6. Step 6: Final answer
    x = 548,949.60

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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.