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Finding the Fourth Proportional to 553,225.40, 829,838.10 and 179,286.20

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Solution

The fourth proportional to 553,225.40, 829,838.10 and 179,286.20 is: 268,929.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,225.40 : 829,838.10 = 179,286.20 : x
  2. Step 2: Convert to fraction form
    553,225.40/829,838.10 = 179,286.20/x
  3. Step 3: Cross multiply
    553,225.40x = 829,838.10 × 179,286.20
  4. Step 4: Simplify right side
    553,225.40x = 148,778,519,564.22
  5. Step 5: Solve for x
    x = 148,778,519,564.22/553,225.40
  6. Step 6: Final answer
    x = 268,929.30

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Similar ratio
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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.