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Finding the Fourth Proportional to 592,639.58, 817,842.60 and 320,707.47

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Solution

The fourth proportional to 592,639.58, 817,842.60 and 320,707.47 is: 442,576.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    592,639.58 : 817,842.60 = 320,707.47 : x
  2. Step 2: Convert to fraction form
    592,639.58/817,842.60 = 320,707.47/x
  3. Step 3: Cross multiply
    592,639.58x = 817,842.60 × 320,707.47
  4. Step 4: Simplify right side
    592,639.58x = 262,288,227,456.08
  5. Step 5: Solve for x
    x = 262,288,227,456.08/592,639.58
  6. Step 6: Final answer
    x = 442,576.30

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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.