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Finding the Fourth Proportional to 583,907.60, 875,890.20 and 303,971.60

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Solution

The fourth proportional to 583,907.60, 875,890.20 and 303,971.60 is: 455,972.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,907.60 : 875,890.20 = 303,971.60 : x
  2. Step 2: Convert to fraction form
    583,907.60/875,890.20 = 303,971.60/x
  3. Step 3: Cross multiply
    583,907.60x = 875,890.20 × 303,971.60
  4. Step 4: Simplify right side
    583,907.60x = 266,245,745,518.32
  5. Step 5: Solve for x
    x = 266,245,745,518.32/583,907.60
  6. Step 6: Final answer
    x = 455,972.39

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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.