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Finding the Fourth Proportional to 370,408.55, 555,554.88 and 117,655.79

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Solution

The fourth proportional to 370,408.55, 555,554.88 and 117,655.79 is: 176,465.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,408.55 : 555,554.88 = 117,655.79 : x
  2. Step 2: Convert to fraction form
    370,408.55/555,554.88 = 117,655.79/x
  3. Step 3: Cross multiply
    370,408.55x = 555,554.88 × 117,655.79
  4. Step 4: Simplify right side
    370,408.55x = 65,364,245,516.98
  5. Step 5: Solve for x
    x = 65,364,245,516.98/370,408.55
  6. Step 6: Final answer
    x = 176,465.27

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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.