Home / 639,569.64-882,592.08-349,171.28

Finding the Fourth Proportional to 639,569.64, 882,592.08 and 349,171.28

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Solution

The fourth proportional to 639,569.64, 882,592.08 and 349,171.28 is: 481,848.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,569.64 : 882,592.08 = 349,171.28 : x
  2. Step 2: Convert to fraction form
    639,569.64/882,592.08 = 349,171.28/x
  3. Step 3: Cross multiply
    639,569.64x = 882,592.08 × 349,171.28
  4. Step 4: Simplify right side
    639,569.64x = 308,175,806,291.46
  5. Step 5: Solve for x
    x = 308,175,806,291.46/639,569.64
  6. Step 6: Final answer
    x = 481,848.71

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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.