Home / 930,119.40-1,395,179.10-256,304.70

Finding the Fourth Proportional to 930,119.40, 1,395,179.10 and 256,304.70

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Solution

The fourth proportional to 930,119.40, 1,395,179.10 and 256,304.70 is: 384,457.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    930,119.40 : 1,395,179.10 = 256,304.70 : x
  2. Step 2: Convert to fraction form
    930,119.40/1,395,179.10 = 256,304.70/x
  3. Step 3: Cross multiply
    930,119.40x = 1,395,179.10 × 256,304.70
  4. Step 4: Simplify right side
    930,119.40x = 357,590,960,671.77
  5. Step 5: Solve for x
    x = 357,590,960,671.77/930,119.40
  6. Step 6: Final answer
    x = 384,457.05

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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.