Home / 530,816.25-732,515.49-289,103.07

Finding the Fourth Proportional to 530,816.25, 732,515.49 and 289,103.07

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Solution

The fourth proportional to 530,816.25, 732,515.49 and 289,103.07 is: 398,956.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,816.25 : 732,515.49 = 289,103.07 : x
  2. Step 2: Convert to fraction form
    530,816.25/732,515.49 = 289,103.07/x
  3. Step 3: Cross multiply
    530,816.25x = 732,515.49 × 289,103.07
  4. Step 4: Simplify right side
    530,816.25x = 211,772,476,981.55
  5. Step 5: Solve for x
    x = 211,772,476,981.55/530,816.25
  6. Step 6: Final answer
    x = 398,956.28

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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.