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Finding the Fourth Proportional to 480,328.24, 662,878.61 and 276,410.20

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Solution

The fourth proportional to 480,328.24, 662,878.61 and 276,410.20 is: 381,460.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,328.24 : 662,878.61 = 276,410.20 : x
  2. Step 2: Convert to fraction form
    480,328.24/662,878.61 = 276,410.20/x
  3. Step 3: Cross multiply
    480,328.24x = 662,878.61 × 276,410.20
  4. Step 4: Simplify right side
    480,328.24x = 183,226,409,165.82
  5. Step 5: Solve for x
    x = 183,226,409,165.82/480,328.24
  6. Step 6: Final answer
    x = 381,460.83

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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.