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Finding the Fourth Proportional to 515,637.66, 711,710.77 and 352,360.29

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Solution

The fourth proportional to 515,637.66, 711,710.77 and 352,360.29 is: 486,346.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,637.66 : 711,710.77 = 352,360.29 : x
  2. Step 2: Convert to fraction form
    515,637.66/711,710.77 = 352,360.29/x
  3. Step 3: Cross multiply
    515,637.66x = 711,710.77 × 352,360.29
  4. Step 4: Simplify right side
    515,637.66x = 250,778,613,313.32
  5. Step 5: Solve for x
    x = 250,778,613,313.32/515,637.66
  6. Step 6: Final answer
    x = 486,346.58

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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.