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Finding the Fourth Proportional to 328,261.84, 492,394.92 and 117,901.60

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Solution

The fourth proportional to 328,261.84, 492,394.92 and 117,901.60 is: 176,853.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,261.84 : 492,394.92 = 117,901.60 : x
  2. Step 2: Convert to fraction form
    328,261.84/492,394.92 = 117,901.60/x
  3. Step 3: Cross multiply
    328,261.84x = 492,394.92 × 117,901.60
  4. Step 4: Simplify right side
    328,261.84x = 58,054,148,899.87
  5. Step 5: Solve for x
    x = 58,054,148,899.87/328,261.84
  6. Step 6: Final answer
    x = 176,853.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.