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Finding the Fourth Proportional to 592,410.80, 817,525.10 and 320,478.62

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Solution

The fourth proportional to 592,410.80, 817,525.10 and 320,478.62 is: 442,259.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    592,410.80 : 817,525.10 = 320,478.62 : x
  2. Step 2: Convert to fraction form
    592,410.80/817,525.10 = 320,478.62/x
  3. Step 3: Cross multiply
    592,410.80x = 817,525.10 × 320,478.62
  4. Step 4: Simplify right side
    592,410.80x = 261,999,310,173.34
  5. Step 5: Solve for x
    x = 261,999,310,173.34/592,410.80
  6. Step 6: Final answer
    x = 442,259.51

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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.