Home / 886,903.30-1,330,354.95-381,706.30

Finding the Fourth Proportional to 886,903.30, 1,330,354.95 and 381,706.30

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Solution

The fourth proportional to 886,903.30, 1,330,354.95 and 381,706.30 is: 572,559.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,903.30 : 1,330,354.95 = 381,706.30 : x
  2. Step 2: Convert to fraction form
    886,903.30/1,330,354.95 = 381,706.30/x
  3. Step 3: Cross multiply
    886,903.30x = 1,330,354.95 × 381,706.30
  4. Step 4: Simplify right side
    886,903.30x = 507,804,865,651.19
  5. Step 5: Solve for x
    x = 507,804,865,651.19/886,903.30
  6. Step 6: Final answer
    x = 572,559.45

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.