Home / 353,686.15-488,525.34-256,735.36

Finding the Fourth Proportional to 353,686.15, 488,525.34 and 256,735.36

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Solution

The fourth proportional to 353,686.15, 488,525.34 and 256,735.36 is: 354,613.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,686.15 : 488,525.34 = 256,735.36 : x
  2. Step 2: Convert to fraction form
    353,686.15/488,525.34 = 256,735.36/x
  3. Step 3: Cross multiply
    353,686.15x = 488,525.34 × 256,735.36
  4. Step 4: Simplify right side
    353,686.15x = 125,421,729,034.02
  5. Step 5: Solve for x
    x = 125,421,729,034.02/353,686.15
  6. Step 6: Final answer
    x = 354,613.06

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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.