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Finding the Fourth Proportional to 303,360.40, 418,573.20 and 176,019.76

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Solution

The fourth proportional to 303,360.40, 418,573.20 and 176,019.76 is: 242,870.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,360.40 : 418,573.20 = 176,019.76 : x
  2. Step 2: Convert to fraction form
    303,360.40/418,573.20 = 176,019.76/x
  3. Step 3: Cross multiply
    303,360.40x = 418,573.20 × 176,019.76
  4. Step 4: Simplify right side
    303,360.40x = 73,677,154,206.43
  5. Step 5: Solve for x
    x = 73,677,154,206.43/303,360.40
  6. Step 6: Final answer
    x = 242,870.05

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1.5x scale

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.