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Finding the Fourth Proportional to 515,341.04, 711,169.47 and 285,933.24

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Solution

The fourth proportional to 515,341.04, 711,169.47 and 285,933.24 is: 394,587.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,341.04 : 711,169.47 = 285,933.24 : x
  2. Step 2: Convert to fraction form
    515,341.04/711,169.47 = 285,933.24/x
  3. Step 3: Cross multiply
    515,341.04x = 711,169.47 × 285,933.24
  4. Step 4: Simplify right side
    515,341.04x = 203,346,990,746.18
  5. Step 5: Solve for x
    x = 203,346,990,746.18/515,341.04
  6. Step 6: Final answer
    x = 394,587.23

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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.