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Finding the Fourth Proportional to 358,945.83, 538,477.88 and 134,384.67

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Solution

The fourth proportional to 358,945.83, 538,477.88 and 134,384.67 is: 201,599.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,945.83 : 538,477.88 = 134,384.67 : x
  2. Step 2: Convert to fraction form
    358,945.83/538,477.88 = 134,384.67/x
  3. Step 3: Cross multiply
    358,945.83x = 538,477.88 × 134,384.67
  4. Step 4: Simplify right side
    358,945.83x = 72,363,171,534.18
  5. Step 5: Solve for x
    x = 72,363,171,534.18/358,945.83
  6. Step 6: Final answer
    x = 201,599.14

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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.