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Finding the Fourth Proportional to 417,556.92, 626,778.27 and 369,835.32

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Solution

The fourth proportional to 417,556.92, 626,778.27 and 369,835.32 is: 555,145.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,556.92 : 626,778.27 = 369,835.32 : x
  2. Step 2: Convert to fraction form
    417,556.92/626,778.27 = 369,835.32/x
  3. Step 3: Cross multiply
    417,556.92x = 626,778.27 × 369,835.32
  4. Step 4: Simplify right side
    417,556.92x = 231,804,742,054.50
  5. Step 5: Solve for x
    x = 231,804,742,054.50/417,556.92
  6. Step 6: Final answer
    x = 555,145.25

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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.