Home / 690,698.39-953,149.41-384,774.35

Finding the Fourth Proportional to 690,698.39, 953,149.41 and 384,774.35

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Solution

The fourth proportional to 690,698.39, 953,149.41 and 384,774.35 is: 530,980.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,698.39 : 953,149.41 = 384,774.35 : x
  2. Step 2: Convert to fraction form
    690,698.39/953,149.41 = 384,774.35/x
  3. Step 3: Cross multiply
    690,698.39x = 953,149.41 × 384,774.35
  4. Step 4: Simplify right side
    690,698.39x = 366,747,439,919.89
  5. Step 5: Solve for x
    x = 366,747,439,919.89/690,698.39
  6. Step 6: Final answer
    x = 530,980.60

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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.