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Finding the Fourth Proportional to 384,310.32, 530,595.18 and 248,552.40

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Solution

The fourth proportional to 384,310.32, 530,595.18 and 248,552.40 is: 343,162.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,310.32 : 530,595.18 = 248,552.40 : x
  2. Step 2: Convert to fraction form
    384,310.32/530,595.18 = 248,552.40/x
  3. Step 3: Cross multiply
    384,310.32x = 530,595.18 × 248,552.40
  4. Step 4: Simplify right side
    384,310.32x = 131,880,705,417.43
  5. Step 5: Solve for x
    x = 131,880,705,417.43/384,310.32
  6. Step 6: Final answer
    x = 343,162.02

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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.