Home / 688,027.85-949,509.95-382,105.63

Finding the Fourth Proportional to 688,027.85, 949,509.95 and 382,105.63

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Solution

The fourth proportional to 688,027.85, 949,509.95 and 382,105.63 is: 527,323.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,027.85 : 949,509.95 = 382,105.63 : x
  2. Step 2: Convert to fraction form
    688,027.85/949,509.95 = 382,105.63/x
  3. Step 3: Cross multiply
    688,027.85x = 949,509.95 × 382,105.63
  4. Step 4: Simplify right side
    688,027.85x = 362,813,097,636.02
  5. Step 5: Solve for x
    x = 362,813,097,636.02/688,027.85
  6. Step 6: Final answer
    x = 527,323.27

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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.