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Finding the Fourth Proportional to 583,281.60, 804,928.44 and 315,009.60

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Solution

The fourth proportional to 583,281.60, 804,928.44 and 315,009.60 is: 434,713.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,281.60 : 804,928.44 = 315,009.60 : x
  2. Step 2: Convert to fraction form
    583,281.60/804,928.44 = 315,009.60/x
  3. Step 3: Cross multiply
    583,281.60x = 804,928.44 × 315,009.60
  4. Step 4: Simplify right side
    583,281.60x = 253,560,185,913.02
  5. Step 5: Solve for x
    x = 253,560,185,913.02/583,281.60
  6. Step 6: Final answer
    x = 434,713.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.