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Finding the Fourth Proportional to 583,622.96, 805,399.68 and 315,350.96

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Solution

The fourth proportional to 583,622.96, 805,399.68 and 315,350.96 is: 435,184.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,622.96 : 805,399.68 = 315,350.96 : x
  2. Step 2: Convert to fraction form
    583,622.96/805,399.68 = 315,350.96/x
  3. Step 3: Cross multiply
    583,622.96x = 805,399.68 × 315,350.96
  4. Step 4: Simplify right side
    583,622.96x = 253,983,558,244.69
  5. Step 5: Solve for x
    x = 253,983,558,244.69/583,622.96
  6. Step 6: Final answer
    x = 435,184.32

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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.