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Finding the Fourth Proportional to 490,751.76, 736,127.73 and 153,792.30

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Solution

The fourth proportional to 490,751.76, 736,127.73 and 153,792.30 is: 230,688.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,751.76 : 736,127.73 = 153,792.30 : x
  2. Step 2: Convert to fraction form
    490,751.76/736,127.73 = 153,792.30/x
  3. Step 3: Cross multiply
    490,751.76x = 736,127.73 × 153,792.30
  4. Step 4: Simplify right side
    490,751.76x = 113,210,776,690.48
  5. Step 5: Solve for x
    x = 113,210,776,690.48/490,751.76
  6. Step 6: Final answer
    x = 230,688.48

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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.