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Finding the Fourth Proportional to 630,632.40, 945,948.60 and 293,672.40

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Solution

The fourth proportional to 630,632.40, 945,948.60 and 293,672.40 is: 440,508.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,632.40 : 945,948.60 = 293,672.40 : x
  2. Step 2: Convert to fraction form
    630,632.40/945,948.60 = 293,672.40/x
  3. Step 3: Cross multiply
    630,632.40x = 945,948.60 × 293,672.40
  4. Step 4: Simplify right side
    630,632.40x = 277,798,995,638.64
  5. Step 5: Solve for x
    x = 277,798,995,638.64/630,632.40
  6. Step 6: Final answer
    x = 440,508.60

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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.