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Finding the Fourth Proportional to 583,352.25, 805,026.65 and 315,080.25

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Solution

The fourth proportional to 583,352.25, 805,026.65 and 315,080.25 is: 434,811.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,352.25 : 805,026.65 = 315,080.25 : x
  2. Step 2: Convert to fraction form
    583,352.25/805,026.65 = 315,080.25/x
  3. Step 3: Cross multiply
    583,352.25x = 805,026.65 × 315,080.25
  4. Step 4: Simplify right side
    583,352.25x = 253,647,996,563.26
  5. Step 5: Solve for x
    x = 253,647,996,563.26/583,352.25
  6. Step 6: Final answer
    x = 434,811.04

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.