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Finding the Fourth Proportional to 329,980.64, 455,373.27 and 179,077.64

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Solution

The fourth proportional to 329,980.64, 455,373.27 and 179,077.64 is: 247,127.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,980.64 : 455,373.27 = 179,077.64 : x
  2. Step 2: Convert to fraction form
    329,980.64/455,373.27 = 179,077.64/x
  3. Step 3: Cross multiply
    329,980.64x = 455,373.27 × 179,077.64
  4. Step 4: Simplify right side
    329,980.64x = 81,547,168,233.82
  5. Step 5: Solve for x
    x = 81,547,168,233.82/329,980.64
  6. Step 6: Final answer
    x = 247,127.13

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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.