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Finding the Fourth Proportional to 514,888.39, 772,384.47 and 135,835.32

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Solution

The fourth proportional to 514,888.39, 772,384.47 and 135,835.32 is: 203,766.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,888.39 : 772,384.47 = 135,835.32 : x
  2. Step 2: Convert to fraction form
    514,888.39/772,384.47 = 135,835.32/x
  3. Step 3: Cross multiply
    514,888.39x = 772,384.47 × 135,835.32
  4. Step 4: Simplify right side
    514,888.39x = 104,917,091,645.48
  5. Step 5: Solve for x
    x = 104,917,091,645.48/514,888.39
  6. Step 6: Final answer
    x = 203,766.67

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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.