Home / 688,215.24-949,840.56-495,261.77

Finding the Fourth Proportional to 688,215.24, 949,840.56 and 495,261.77

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Solution

The fourth proportional to 688,215.24, 949,840.56 and 495,261.77 is: 683,535.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,215.24 : 949,840.56 = 495,261.77 : x
  2. Step 2: Convert to fraction form
    688,215.24/949,840.56 = 495,261.77/x
  3. Step 3: Cross multiply
    688,215.24x = 949,840.56 × 495,261.77
  4. Step 4: Simplify right side
    688,215.24x = 470,419,712,214.19
  5. Step 5: Solve for x
    x = 470,419,712,214.19/688,215.24
  6. Step 6: Final answer
    x = 683,535.74

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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.