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Finding the Fourth Proportional to 623,138.90, 934,708.35 and 202,457.30

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Solution

The fourth proportional to 623,138.90, 934,708.35 and 202,457.30 is: 303,685.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,138.90 : 934,708.35 = 202,457.30 : x
  2. Step 2: Convert to fraction form
    623,138.90/934,708.35 = 202,457.30/x
  3. Step 3: Cross multiply
    623,138.90x = 934,708.35 × 202,457.30
  4. Step 4: Simplify right side
    623,138.90x = 189,238,528,828.46
  5. Step 5: Solve for x
    x = 189,238,528,828.46/623,138.90
  6. Step 6: Final answer
    x = 303,685.95

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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.