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Finding the Fourth Proportional to 612,215.51, 918,332.51 and 233,157.24

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Solution

The fourth proportional to 612,215.51, 918,332.51 and 233,157.24 is: 349,739.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,215.51 : 918,332.51 = 233,157.24 : x
  2. Step 2: Convert to fraction form
    612,215.51/918,332.51 = 233,157.24/x
  3. Step 3: Cross multiply
    612,215.51x = 918,332.51 × 233,157.24
  4. Step 4: Simplify right side
    612,215.51x = 214,115,872,268.09
  5. Step 5: Solve for x
    x = 214,115,872,268.09/612,215.51
  6. Step 6: Final answer
    x = 349,739.38

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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.