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Finding the Fourth Proportional to 638,233.10, 957,349.65 and 607,129.10

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Solution

The fourth proportional to 638,233.10, 957,349.65 and 607,129.10 is: 910,693.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,233.10 : 957,349.65 = 607,129.10 : x
  2. Step 2: Convert to fraction form
    638,233.10/957,349.65 = 607,129.10/x
  3. Step 3: Cross multiply
    638,233.10x = 957,349.65 × 607,129.10
  4. Step 4: Simplify right side
    638,233.10x = 581,234,831,389.82
  5. Step 5: Solve for x
    x = 581,234,831,389.82/638,233.10
  6. Step 6: Final answer
    x = 910,693.65

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Half scale
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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.