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Finding the Fourth Proportional to 317,801.52, 438,691.05 and 190,452.51

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Solution

The fourth proportional to 317,801.52, 438,691.05 and 190,452.51 is: 262,899.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,801.52 : 438,691.05 = 190,452.51 : x
  2. Step 2: Convert to fraction form
    317,801.52/438,691.05 = 190,452.51/x
  3. Step 3: Cross multiply
    317,801.52x = 438,691.05 × 190,452.51
  4. Step 4: Simplify right side
    317,801.52x = 83,549,811,587.04
  5. Step 5: Solve for x
    x = 83,549,811,587.04/317,801.52
  6. Step 6: Final answer
    x = 262,899.35

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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.