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Finding the Fourth Proportional to 319,150.56, 440,430.84 and 175,916.16

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Solution

The fourth proportional to 319,150.56, 440,430.84 and 175,916.16 is: 242,765.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,150.56 : 440,430.84 = 175,916.16 : x
  2. Step 2: Convert to fraction form
    319,150.56/440,430.84 = 175,916.16/x
  3. Step 3: Cross multiply
    319,150.56x = 440,430.84 × 175,916.16
  4. Step 4: Simplify right side
    319,150.56x = 77,478,902,118.37
  5. Step 5: Solve for x
    x = 77,478,902,118.37/319,150.56
  6. Step 6: Final answer
    x = 242,765.99

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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.