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Finding the Fourth Proportional to 532,435.58, 734,790.85 and 290,740.58

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Solution

The fourth proportional to 532,435.58, 734,790.85 and 290,740.58 is: 401,238.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,435.58 : 734,790.85 = 290,740.58 : x
  2. Step 2: Convert to fraction form
    532,435.58/734,790.85 = 290,740.58/x
  3. Step 3: Cross multiply
    532,435.58x = 734,790.85 × 290,740.58
  4. Step 4: Simplify right side
    532,435.58x = 213,633,514,233.74
  5. Step 5: Solve for x
    x = 213,633,514,233.74/532,435.58
  6. Step 6: Final answer
    x = 401,238.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.