Home / 665,826.16-918,856.36-404,184.56

Finding the Fourth Proportional to 665,826.16, 918,856.36 and 404,184.56

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Solution

The fourth proportional to 665,826.16, 918,856.36 and 404,184.56 is: 557,784.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,826.16 : 918,856.36 = 404,184.56 : x
  2. Step 2: Convert to fraction form
    665,826.16/918,856.36 = 404,184.56/x
  3. Step 3: Cross multiply
    665,826.16x = 918,856.36 × 404,184.56
  4. Step 4: Simplify right side
    665,826.16x = 371,387,553,569.80
  5. Step 5: Solve for x
    x = 371,387,553,569.80/665,826.16
  6. Step 6: Final answer
    x = 557,784.56

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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.