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Finding the Fourth Proportional to 371,797.34, 513,038.68 and 210,617.87

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Solution

The fourth proportional to 371,797.34, 513,038.68 and 210,617.87 is: 290,629.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,797.34 : 513,038.68 = 210,617.87 : x
  2. Step 2: Convert to fraction form
    371,797.34/513,038.68 = 210,617.87/x
  3. Step 3: Cross multiply
    371,797.34x = 513,038.68 × 210,617.87
  4. Step 4: Simplify right side
    371,797.34x = 108,055,114,009.21
  5. Step 5: Solve for x
    x = 108,055,114,009.21/371,797.34
  6. Step 6: Final answer
    x = 290,629.07

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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.