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Finding the Fourth Proportional to 353,458.96, 487,758.75 and 192,314.63

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Solution

The fourth proportional to 353,458.96, 487,758.75 and 192,314.63 is: 265,386.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,458.96 : 487,758.75 = 192,314.63 : x
  2. Step 2: Convert to fraction form
    353,458.96/487,758.75 = 192,314.63/x
  3. Step 3: Cross multiply
    353,458.96x = 487,758.75 × 192,314.63
  4. Step 4: Simplify right side
    353,458.96x = 93,803,143,535.51
  5. Step 5: Solve for x
    x = 93,803,143,535.51/353,458.96
  6. Step 6: Final answer
    x = 265,386.24

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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.