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Finding the Fourth Proportional to 880,328.82, 1,214,866.37 and 512,796.51

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Solution

The fourth proportional to 880,328.82, 1,214,866.37 and 512,796.51 is: 707,666.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,328.82 : 1,214,866.37 = 512,796.51 : x
  2. Step 2: Convert to fraction form
    880,328.82/1,214,866.37 = 512,796.51/x
  3. Step 3: Cross multiply
    880,328.82x = 1,214,866.37 × 512,796.51
  4. Step 4: Simplify right side
    880,328.82x = 622,979,232,088.39
  5. Step 5: Solve for x
    x = 622,979,232,088.39/880,328.82
  6. Step 6: Final answer
    x = 707,666.52

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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.