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Finding the Fourth Proportional to 319,152.56, 440,433.60 and 175,918.16

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Solution

The fourth proportional to 319,152.56, 440,433.60 and 175,918.16 is: 242,768.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,152.56 : 440,433.60 = 175,918.16 : x
  2. Step 2: Convert to fraction form
    319,152.56/440,433.60 = 175,918.16/x
  3. Step 3: Cross multiply
    319,152.56x = 440,433.60 × 175,918.16
  4. Step 4: Simplify right side
    319,152.56x = 77,480,268,514.18
  5. Step 5: Solve for x
    x = 77,480,268,514.18/319,152.56
  6. Step 6: Final answer
    x = 242,768.75

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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.