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Finding the Fourth Proportional to 613,422.10, 846,561.18 and 371,725.84

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Solution

The fourth proportional to 613,422.10, 846,561.18 and 371,725.84 is: 513,005.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,422.10 : 846,561.18 = 371,725.84 : x
  2. Step 2: Convert to fraction form
    613,422.10/846,561.18 = 371,725.84/x
  3. Step 3: Cross multiply
    613,422.10x = 846,561.18 × 371,725.84
  4. Step 4: Simplify right side
    613,422.10x = 314,688,665,746.89
  5. Step 5: Solve for x
    x = 314,688,665,746.89/613,422.10
  6. Step 6: Final answer
    x = 513,005.10

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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.