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Finding the Fourth Proportional to 612,620.32, 918,809.36 and 582,240.06

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Solution

The fourth proportional to 612,620.32, 918,809.36 and 582,240.06 is: 873,244.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,620.32 : 918,809.36 = 582,240.06 : x
  2. Step 2: Convert to fraction form
    612,620.32/918,809.36 = 582,240.06/x
  3. Step 3: Cross multiply
    612,620.32x = 918,809.36 × 582,240.06
  4. Step 4: Simplify right side
    612,620.32x = 534,967,616,894.96
  5. Step 5: Solve for x
    x = 534,967,616,894.96/612,620.32
  6. Step 6: Final answer
    x = 873,244.98

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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.