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Finding the Fourth Proportional to 553,325.29, 763,578.53 and 338,449.57

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Solution

The fourth proportional to 553,325.29, 763,578.53 and 338,449.57 is: 467,054.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,325.29 : 763,578.53 = 338,449.57 : x
  2. Step 2: Convert to fraction form
    553,325.29/763,578.53 = 338,449.57/x
  3. Step 3: Cross multiply
    553,325.29x = 763,578.53 × 338,449.57
  4. Step 4: Simplify right side
    553,325.29x = 258,432,822,807.72
  5. Step 5: Solve for x
    x = 258,432,822,807.72/553,325.29
  6. Step 6: Final answer
    x = 467,054.06

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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.