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Finding the Fourth Proportional to 358,965.90, 538,345.14 and 122,303.34

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Solution

The fourth proportional to 358,965.90, 538,345.14 and 122,303.34 is: 183,419.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,965.90 : 538,345.14 = 122,303.34 : x
  2. Step 2: Convert to fraction form
    358,965.90/538,345.14 = 122,303.34/x
  3. Step 3: Cross multiply
    358,965.90x = 538,345.14 × 122,303.34
  4. Step 4: Simplify right side
    358,965.90x = 65,841,408,694.77
  5. Step 5: Solve for x
    x = 65,841,408,694.77/358,965.90
  6. Step 6: Final answer
    x = 183,419.67

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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.