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Finding the Fourth Proportional to 583,303.60, 804,958.80 and 315,031.60

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Solution

The fourth proportional to 583,303.60, 804,958.80 and 315,031.60 is: 434,743.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,303.60 : 804,958.80 = 315,031.60 : x
  2. Step 2: Convert to fraction form
    583,303.60/804,958.80 = 315,031.60/x
  3. Step 3: Cross multiply
    583,303.60x = 804,958.80 × 315,031.60
  4. Step 4: Simplify right side
    583,303.60x = 253,587,458,698.08
  5. Step 5: Solve for x
    x = 253,587,458,698.08/583,303.60
  6. Step 6: Final answer
    x = 434,743.52

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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.