Home / 280,935.64-387,676.86-153,586.52

Finding the Fourth Proportional to 280,935.64, 387,676.86 and 153,586.52

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Solution

The fourth proportional to 280,935.64, 387,676.86 and 153,586.52 is: 211,941.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,935.64 : 387,676.86 = 153,586.52 : x
  2. Step 2: Convert to fraction form
    280,935.64/387,676.86 = 153,586.52/x
  3. Step 3: Cross multiply
    280,935.64x = 387,676.86 × 153,586.52
  4. Step 4: Simplify right side
    280,935.64x = 59,541,939,811.93
  5. Step 5: Solve for x
    x = 59,541,939,811.93/280,935.64
  6. Step 6: Final answer
    x = 211,941.57

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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.