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Finding the Fourth Proportional to 521,066.60, 779,526.30 and 451,716.20

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Solution

The fourth proportional to 521,066.60, 779,526.30 and 451,716.20 is: 675,776.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,066.60 : 779,526.30 = 451,716.20 : x
  2. Step 2: Convert to fraction form
    521,066.60/779,526.30 = 451,716.20/x
  3. Step 3: Cross multiply
    521,066.60x = 779,526.30 × 451,716.20
  4. Step 4: Simplify right side
    521,066.60x = 352,124,658,036.06
  5. Step 5: Solve for x
    x = 352,124,658,036.06/521,066.60
  6. Step 6: Final answer
    x = 675,776.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.