Home / 386,877.03-533,890.59-217,111.14

Finding the Fourth Proportional to 386,877.03, 533,890.59 and 217,111.14

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Solution

The fourth proportional to 386,877.03, 533,890.59 and 217,111.14 is: 299,613.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,877.03 : 533,890.59 = 217,111.14 : x
  2. Step 2: Convert to fraction form
    386,877.03/533,890.59 = 217,111.14/x
  3. Step 3: Cross multiply
    386,877.03x = 533,890.59 × 217,111.14
  4. Step 4: Simplify right side
    386,877.03x = 115,913,594,630.17
  5. Step 5: Solve for x
    x = 115,913,594,630.17/386,877.03
  6. Step 6: Final answer
    x = 299,613.54

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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.