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Finding the Fourth Proportional to 495,054.50, 683,118.39 and 277,232.78

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Solution

The fourth proportional to 495,054.50, 683,118.39 and 277,232.78 is: 382,549.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,054.50 : 683,118.39 = 277,232.78 : x
  2. Step 2: Convert to fraction form
    495,054.50/683,118.39 = 277,232.78/x
  3. Step 3: Cross multiply
    495,054.50x = 683,118.39 × 277,232.78
  4. Step 4: Simplify right side
    495,054.50x = 189,382,810,328.82
  5. Step 5: Solve for x
    x = 189,382,810,328.82/495,054.50
  6. Step 6: Final answer
    x = 382,549.42

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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.