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Finding the Fourth Proportional to 370,407.55, 555,611.33 and 354,855.55

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Solution

The fourth proportional to 370,407.55, 555,611.33 and 354,855.55 is: 532,283.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,407.55 : 555,611.33 = 354,855.55 : x
  2. Step 2: Convert to fraction form
    370,407.55/555,611.33 = 354,855.55/x
  3. Step 3: Cross multiply
    370,407.55x = 555,611.33 × 354,855.55
  4. Step 4: Simplify right side
    370,407.55x = 197,161,762,319.10
  5. Step 5: Solve for x
    x = 197,161,762,319.10/370,407.55
  6. Step 6: Final answer
    x = 532,283.33

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Similar ratio
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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.