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Finding the Fourth Proportional to 623,148.30, 934,722.45 and 623,148.30

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Solution

The fourth proportional to 623,148.30, 934,722.45 and 623,148.30 is: 934,722.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,148.30 : 934,722.45 = 623,148.30 : x
  2. Step 2: Convert to fraction form
    623,148.30/934,722.45 = 623,148.30/x
  3. Step 3: Cross multiply
    623,148.30x = 934,722.45 × 623,148.30
  4. Step 4: Simplify right side
    623,148.30x = 582,470,705,689.34
  5. Step 5: Solve for x
    x = 582,470,705,689.34/623,148.30
  6. Step 6: Final answer
    x = 934,722.45

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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.