Home / 639,254.16-958,985.28-239,926.32

Finding the Fourth Proportional to 639,254.16, 958,985.28 and 239,926.32

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Solution

The fourth proportional to 639,254.16, 958,985.28 and 239,926.32 is: 359,928.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,254.16 : 958,985.28 = 239,926.32 : x
  2. Step 2: Convert to fraction form
    639,254.16/958,985.28 = 239,926.32/x
  3. Step 3: Cross multiply
    639,254.16x = 958,985.28 × 239,926.32
  4. Step 4: Simplify right side
    639,254.16x = 230,085,809,164.57
  5. Step 5: Solve for x
    x = 230,085,809,164.57/639,254.16
  6. Step 6: Final answer
    x = 359,928.53

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.