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Finding the Fourth Proportional to 386,000.58, 579,118.08 and 186,283.74

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Solution

The fourth proportional to 386,000.58, 579,118.08 and 186,283.74 is: 279,482.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,000.58 : 579,118.08 = 186,283.74 : x
  2. Step 2: Convert to fraction form
    386,000.58/579,118.08 = 186,283.74/x
  3. Step 3: Cross multiply
    386,000.58x = 579,118.08 × 186,283.74
  4. Step 4: Simplify right side
    386,000.58x = 107,880,281,844.02
  5. Step 5: Solve for x
    x = 107,880,281,844.02/386,000.58
  6. Step 6: Final answer
    x = 279,482.18

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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.