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Finding the Fourth Proportional to 341,916.64, 512,416.51 and 266,106.72

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Solution

The fourth proportional to 341,916.64, 512,416.51 and 266,106.72 is: 398,803.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,916.64 : 512,416.51 = 266,106.72 : x
  2. Step 2: Convert to fraction form
    341,916.64/512,416.51 = 266,106.72/x
  3. Step 3: Cross multiply
    341,916.64x = 512,416.51 × 266,106.72
  4. Step 4: Simplify right side
    341,916.64x = 136,357,476,749.95
  5. Step 5: Solve for x
    x = 136,357,476,749.95/341,916.64
  6. Step 6: Final answer
    x = 398,803.28

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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.