Home / 838,979.73-1,157,809.91-457,005.69

Finding the Fourth Proportional to 838,979.73, 1,157,809.91 and 457,005.69

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Solution

The fourth proportional to 838,979.73, 1,157,809.91 and 457,005.69 is: 630,677.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,979.73 : 1,157,809.91 = 457,005.69 : x
  2. Step 2: Convert to fraction form
    838,979.73/1,157,809.91 = 457,005.69/x
  3. Step 3: Cross multiply
    838,979.73x = 1,157,809.91 × 457,005.69
  4. Step 4: Simplify right side
    838,979.73x = 529,125,714,523.36
  5. Step 5: Solve for x
    x = 529,125,714,523.36/838,979.73
  6. Step 6: Final answer
    x = 630,677.59

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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.