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Finding the Fourth Proportional to 556,040.54, 767,311.58 and 326,621.34

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Solution

The fourth proportional to 556,040.54, 767,311.58 and 326,621.34 is: 450,723.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,040.54 : 767,311.58 = 326,621.34 : x
  2. Step 2: Convert to fraction form
    556,040.54/767,311.58 = 326,621.34/x
  3. Step 3: Cross multiply
    556,040.54x = 767,311.58 × 326,621.34
  4. Step 4: Simplify right side
    556,040.54x = 250,620,334,824.01
  5. Step 5: Solve for x
    x = 250,620,334,824.01/556,040.54
  6. Step 6: Final answer
    x = 450,723.14

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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.