Home / 623,998.20-935,997.30-384,497.40

Finding the Fourth Proportional to 623,998.20, 935,997.30 and 384,497.40

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Solution

The fourth proportional to 623,998.20, 935,997.30 and 384,497.40 is: 576,746.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,998.20 : 935,997.30 = 384,497.40 : x
  2. Step 2: Convert to fraction form
    623,998.20/935,997.30 = 384,497.40/x
  3. Step 3: Cross multiply
    623,998.20x = 935,997.30 × 384,497.40
  4. Step 4: Simplify right side
    623,998.20x = 359,888,528,257.02
  5. Step 5: Solve for x
    x = 359,888,528,257.02/623,998.20
  6. Step 6: Final answer
    x = 576,746.10

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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.