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Finding the Fourth Proportional to 592,412.80, 817,527.86 and 320,480.62

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Solution

The fourth proportional to 592,412.80, 817,527.86 and 320,480.62 is: 442,262.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    592,412.80 : 817,527.86 = 320,480.62 : x
  2. Step 2: Convert to fraction form
    592,412.80/817,527.86 = 320,480.62/x
  3. Step 3: Cross multiply
    592,412.80x = 817,527.86 × 320,480.62
  4. Step 4: Simplify right side
    592,412.80x = 262,001,835,440.07
  5. Step 5: Solve for x
    x = 262,001,835,440.07/592,412.80
  6. Step 6: Final answer
    x = 442,262.28

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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.