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Finding the Fourth Proportional to 353,461.70, 487,762.55 and 192,317.38

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Solution

The fourth proportional to 353,461.70, 487,762.55 and 192,317.38 is: 265,390.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,461.70 : 487,762.55 = 192,317.38 : x
  2. Step 2: Convert to fraction form
    353,461.70/487,762.55 = 192,317.38/x
  3. Step 3: Cross multiply
    353,461.70x = 487,762.55 × 192,317.38
  4. Step 4: Simplify right side
    353,461.70x = 93,805,215,678.12
  5. Step 5: Solve for x
    x = 93,805,215,678.12/353,461.70
  6. Step 6: Final answer
    x = 265,390.04

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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.