Home / 838,485.92-1,157,108.82-456,509.36

Finding the Fourth Proportional to 838,485.92, 1,157,108.82 and 456,509.36

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Solution

The fourth proportional to 838,485.92, 1,157,108.82 and 456,509.36 is: 629,981.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,485.92 : 1,157,108.82 = 456,509.36 : x
  2. Step 2: Convert to fraction form
    838,485.92/1,157,108.82 = 456,509.36/x
  3. Step 3: Cross multiply
    838,485.92x = 1,157,108.82 × 456,509.36
  4. Step 4: Simplify right side
    838,485.92x = 528,231,006,868.56
  5. Step 5: Solve for x
    x = 528,231,006,868.56/838,485.92
  6. Step 6: Final answer
    x = 629,981.96

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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.