Home / 319,288.56-440,621.28-176,054.40

Finding the Fourth Proportional to 319,288.56, 440,621.28 and 176,054.40

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Solution

The fourth proportional to 319,288.56, 440,621.28 and 176,054.40 is: 242,956.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,288.56 : 440,621.28 = 176,054.40 : x
  2. Step 2: Convert to fraction form
    319,288.56/440,621.28 = 176,054.40/x
  3. Step 3: Cross multiply
    319,288.56x = 440,621.28 × 176,054.40
  4. Step 4: Simplify right side
    319,288.56x = 77,573,315,077.63
  5. Step 5: Solve for x
    x = 77,573,315,077.63/319,288.56
  6. Step 6: Final answer
    x = 242,956.76

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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.