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Finding the Fourth Proportional to 303,319.70, 454,979.55 and 92,930.30

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Solution

The fourth proportional to 303,319.70, 454,979.55 and 92,930.30 is: 139,395.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,319.70 : 454,979.55 = 92,930.30 : x
  2. Step 2: Convert to fraction form
    303,319.70/454,979.55 = 92,930.30/x
  3. Step 3: Cross multiply
    303,319.70x = 454,979.55 × 92,930.30
  4. Step 4: Simplify right side
    303,319.70x = 42,281,386,075.37
  5. Step 5: Solve for x
    x = 42,281,386,075.37/303,319.70
  6. Step 6: Final answer
    x = 139,395.45

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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.