Home / 530,586.10-732,185.87-288,869.54

Finding the Fourth Proportional to 530,586.10, 732,185.87 and 288,869.54

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Solution

The fourth proportional to 530,586.10, 732,185.87 and 288,869.54 is: 398,627.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,586.10 : 732,185.87 = 288,869.54 : x
  2. Step 2: Convert to fraction form
    530,586.10/732,185.87 = 288,869.54/x
  3. Step 3: Cross multiply
    530,586.10x = 732,185.87 × 288,869.54
  4. Step 4: Simplify right side
    530,586.10x = 211,506,198,014.04
  5. Step 5: Solve for x
    x = 211,506,198,014.04/530,586.10
  6. Step 6: Final answer
    x = 398,627.48

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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.