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Finding the Fourth Proportional to 358,852.85, 538,261.39 and 134,196.77

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Solution

The fourth proportional to 358,852.85, 538,261.39 and 134,196.77 is: 201,288.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,852.85 : 538,261.39 = 134,196.77 : x
  2. Step 2: Convert to fraction form
    358,852.85/538,261.39 = 134,196.77/x
  3. Step 3: Cross multiply
    358,852.85x = 538,261.39 × 134,196.77
  4. Step 4: Simplify right side
    358,852.85x = 72,232,939,953.71
  5. Step 5: Solve for x
    x = 72,232,939,953.71/358,852.85
  6. Step 6: Final answer
    x = 201,288.47

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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.