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Finding the Fourth Proportional to 442,352.40, 610,384.84 and 261,071.92

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Solution

The fourth proportional to 442,352.40, 610,384.84 and 261,071.92 is: 360,242.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,352.40 : 610,384.84 = 261,071.92 : x
  2. Step 2: Convert to fraction form
    442,352.40/610,384.84 = 261,071.92/x
  3. Step 3: Cross multiply
    442,352.40x = 610,384.84 × 261,071.92
  4. Step 4: Simplify right side
    442,352.40x = 159,354,342,117.69
  5. Step 5: Solve for x
    x = 159,354,342,117.69/442,352.40
  6. Step 6: Final answer
    x = 360,242.97

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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.