Home / 639,117.04-882,301.08-397,477.44

Finding the Fourth Proportional to 639,117.04, 882,301.08 and 397,477.44

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Solution

The fourth proportional to 639,117.04, 882,301.08 and 397,477.44 is: 548,717.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,117.04 : 882,301.08 = 397,477.44 : x
  2. Step 2: Convert to fraction form
    639,117.04/882,301.08 = 397,477.44/x
  3. Step 3: Cross multiply
    639,117.04x = 882,301.08 × 397,477.44
  4. Step 4: Simplify right side
    639,117.04x = 350,694,774,587.64
  5. Step 5: Solve for x
    x = 350,694,774,587.64/639,117.04
  6. Step 6: Final answer
    x = 548,717.61

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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.