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Finding the Fourth Proportional to 654,647.54, 902,900.66 and 448,038.14

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Solution

The fourth proportional to 654,647.54, 902,900.66 and 448,038.14 is: 617,941.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,647.54 : 902,900.66 = 448,038.14 : x
  2. Step 2: Convert to fraction form
    654,647.54/902,900.66 = 448,038.14/x
  3. Step 3: Cross multiply
    654,647.54x = 902,900.66 × 448,038.14
  4. Step 4: Simplify right side
    654,647.54x = 404,533,925,556.48
  5. Step 5: Solve for x
    x = 404,533,925,556.48/654,647.54
  6. Step 6: Final answer
    x = 617,941.57

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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.