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Finding the Fourth Proportional to 563,327.60, 844,991.40 and 339,378.80

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Solution

The fourth proportional to 563,327.60, 844,991.40 and 339,378.80 is: 509,068.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,327.60 : 844,991.40 = 339,378.80 : x
  2. Step 2: Convert to fraction form
    563,327.60/844,991.40 = 339,378.80/x
  3. Step 3: Cross multiply
    563,327.60x = 844,991.40 × 339,378.80
  4. Step 4: Simplify right side
    563,327.60x = 286,772,167,342.32
  5. Step 5: Solve for x
    x = 286,772,167,342.32/563,327.60
  6. Step 6: Final answer
    x = 509,068.20

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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.