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Finding the Fourth Proportional to 492,058.65, 738,087.98 and 487,911.45

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Solution

The fourth proportional to 492,058.65, 738,087.98 and 487,911.45 is: 731,867.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,058.65 : 738,087.98 = 487,911.45 : x
  2. Step 2: Convert to fraction form
    492,058.65/738,087.98 = 487,911.45/x
  3. Step 3: Cross multiply
    492,058.65x = 738,087.98 × 487,911.45
  4. Step 4: Simplify right side
    492,058.65x = 360,121,574,109.81
  5. Step 5: Solve for x
    x = 360,121,574,109.81/492,058.65
  6. Step 6: Final answer
    x = 731,867.18

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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.