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Finding the Fourth Proportional to 583,511.20, 875,266.80 and 492,272.80

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Solution

The fourth proportional to 583,511.20, 875,266.80 and 492,272.80 is: 738,409.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,511.20 : 875,266.80 = 492,272.80 : x
  2. Step 2: Convert to fraction form
    583,511.20/875,266.80 = 492,272.80/x
  3. Step 3: Cross multiply
    583,511.20x = 875,266.80 × 492,272.80
  4. Step 4: Simplify right side
    583,511.20x = 430,870,038,383.04
  5. Step 5: Solve for x
    x = 430,870,038,383.04/583,511.20
  6. Step 6: Final answer
    x = 738,409.20

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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.