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Finding the Fourth Proportional to 456,715.31, 630,113.49 and 265,571.51

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Solution

The fourth proportional to 456,715.31, 630,113.49 and 265,571.51 is: 366,399.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,715.31 : 630,113.49 = 265,571.51 : x
  2. Step 2: Convert to fraction form
    456,715.31/630,113.49 = 265,571.51/x
  3. Step 3: Cross multiply
    456,715.31x = 630,113.49 × 265,571.51
  4. Step 4: Simplify right side
    456,715.31x = 167,340,187,860.10
  5. Step 5: Solve for x
    x = 167,340,187,860.10/456,715.31
  6. Step 6: Final answer
    x = 366,399.34

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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.