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Finding the Fourth Proportional to 492,393.84, 679,495.32 and 277,534.32

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Solution

The fourth proportional to 492,393.84, 679,495.32 and 277,534.32 is: 382,992.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,393.84 : 679,495.32 = 277,534.32 : x
  2. Step 2: Convert to fraction form
    492,393.84/679,495.32 = 277,534.32/x
  3. Step 3: Cross multiply
    492,393.84x = 679,495.32 × 277,534.32
  4. Step 4: Simplify right side
    492,393.84x = 188,583,271,579.38
  5. Step 5: Solve for x
    x = 188,583,271,579.38/492,393.84
  6. Step 6: Final answer
    x = 382,992.75

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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.