Home / 386,874.03-533,886.45-217,108.14

Finding the Fourth Proportional to 386,874.03, 533,886.45 and 217,108.14

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Solution

The fourth proportional to 386,874.03, 533,886.45 and 217,108.14 is: 299,609.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,874.03 : 533,886.45 = 217,108.14 : x
  2. Step 2: Convert to fraction form
    386,874.03/533,886.45 = 217,108.14/x
  3. Step 3: Cross multiply
    386,874.03x = 533,886.45 × 217,108.14
  4. Step 4: Simplify right side
    386,874.03x = 115,911,094,130.70
  5. Step 5: Solve for x
    x = 115,911,094,130.70/386,874.03
  6. Step 6: Final answer
    x = 299,609.40

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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.