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Finding the Fourth Proportional to 425,445.68, 587,144.09 and 259,944.51

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Solution

The fourth proportional to 425,445.68, 587,144.09 and 259,944.51 is: 358,741.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,445.68 : 587,144.09 = 259,944.51 : x
  2. Step 2: Convert to fraction form
    425,445.68/587,144.09 = 259,944.51/x
  3. Step 3: Cross multiply
    425,445.68x = 587,144.09 × 259,944.51
  4. Step 4: Simplify right side
    425,445.68x = 152,624,881,474.72
  5. Step 5: Solve for x
    x = 152,624,881,474.72/425,445.68
  6. Step 6: Final answer
    x = 358,741.18

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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.