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Finding the Fourth Proportional to 265,916.16, 399,222.72 and 177,736.32

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Solution

The fourth proportional to 265,916.16, 399,222.72 and 177,736.32 is: 266,837.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,916.16 : 399,222.72 = 177,736.32 : x
  2. Step 2: Convert to fraction form
    265,916.16/399,222.72 = 177,736.32/x
  3. Step 3: Cross multiply
    265,916.16x = 399,222.72 × 177,736.32
  4. Step 4: Simplify right side
    265,916.16x = 70,956,377,113.19
  5. Step 5: Solve for x
    x = 70,956,377,113.19/265,916.16
  6. Step 6: Final answer
    x = 266,837.40

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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.