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Finding the Fourth Proportional to 623,079.70, 934,619.55 and 202,398.10

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Solution

The fourth proportional to 623,079.70, 934,619.55 and 202,398.10 is: 303,597.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,079.70 : 934,619.55 = 202,398.10 : x
  2. Step 2: Convert to fraction form
    623,079.70/934,619.55 = 202,398.10/x
  3. Step 3: Cross multiply
    623,079.70x = 934,619.55 × 202,398.10
  4. Step 4: Simplify right side
    623,079.70x = 189,165,221,142.86
  5. Step 5: Solve for x
    x = 189,165,221,142.86/623,079.70
  6. Step 6: Final answer
    x = 303,597.15

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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.