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Finding the Fourth Proportional to 634,878.77, 875,995.85 and 366,451.25

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Solution

The fourth proportional to 634,878.77, 875,995.85 and 366,451.25 is: 505,623.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,878.77 : 875,995.85 = 366,451.25 : x
  2. Step 2: Convert to fraction form
    634,878.77/875,995.85 = 366,451.25/x
  3. Step 3: Cross multiply
    634,878.77x = 875,995.85 × 366,451.25
  4. Step 4: Simplify right side
    634,878.77x = 321,009,772,395.06
  5. Step 5: Solve for x
    x = 321,009,772,395.06/634,878.77
  6. Step 6: Final answer
    x = 505,623.73

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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.