Home / 257,570.15-384,460.36-239,520.11

Finding the Fourth Proportional to 257,570.15, 384,460.36 and 239,520.11

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Solution

The fourth proportional to 257,570.15, 384,460.36 and 239,520.11 is: 357,518.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,570.15 : 384,460.36 = 239,520.11 : x
  2. Step 2: Convert to fraction form
    257,570.15/384,460.36 = 239,520.11/x
  3. Step 3: Cross multiply
    257,570.15x = 384,460.36 × 239,520.11
  4. Step 4: Simplify right side
    257,570.15x = 92,085,985,196.74
  5. Step 5: Solve for x
    x = 92,085,985,196.74/257,570.15
  6. Step 6: Final answer
    x = 357,518.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.