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Finding the Fourth Proportional to 582,677.40, 874,016.10 and 405,730.20

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Solution

The fourth proportional to 582,677.40, 874,016.10 and 405,730.20 is: 608,595.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    582,677.40 : 874,016.10 = 405,730.20 : x
  2. Step 2: Convert to fraction form
    582,677.40/874,016.10 = 405,730.20/x
  3. Step 3: Cross multiply
    582,677.40x = 874,016.10 × 405,730.20
  4. Step 4: Simplify right side
    582,677.40x = 354,614,727,056.22
  5. Step 5: Solve for x
    x = 354,614,727,056.22/582,677.40
  6. Step 6: Final answer
    x = 608,595.30

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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.