Home / 456,815.22-630,643.77-284,785.62

Finding the Fourth Proportional to 456,815.22, 630,643.77 and 284,785.62

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Solution

The fourth proportional to 456,815.22, 630,643.77 and 284,785.62 is: 393,153.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,815.22 : 630,643.77 = 284,785.62 : x
  2. Step 2: Convert to fraction form
    456,815.22/630,643.77 = 284,785.62/x
  3. Step 3: Cross multiply
    456,815.22x = 630,643.77 × 284,785.62
  4. Step 4: Simplify right side
    456,815.22x = 179,598,277,038.59
  5. Step 5: Solve for x
    x = 179,598,277,038.59/456,815.22
  6. Step 6: Final answer
    x = 393,153.01

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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.