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Finding the Fourth Proportional to 590,723.40, 886,085.10 and 492,308.40

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Solution

The fourth proportional to 590,723.40, 886,085.10 and 492,308.40 is: 738,462.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,723.40 : 886,085.10 = 492,308.40 : x
  2. Step 2: Convert to fraction form
    590,723.40/886,085.10 = 492,308.40/x
  3. Step 3: Cross multiply
    590,723.40x = 886,085.10 × 492,308.40
  4. Step 4: Simplify right side
    590,723.40x = 436,227,137,844.84
  5. Step 5: Solve for x
    x = 436,227,137,844.84/590,723.40
  6. Step 6: Final answer
    x = 738,462.60

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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.