Home / 805,615.95-1,111,724.55-443,038.68

Finding the Fourth Proportional to 805,615.95, 1,111,724.55 and 443,038.68

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Solution

The fourth proportional to 805,615.95, 1,111,724.55 and 443,038.68 is: 611,379.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,615.95 : 1,111,724.55 = 443,038.68 : x
  2. Step 2: Convert to fraction form
    805,615.95/1,111,724.55 = 443,038.68/x
  3. Step 3: Cross multiply
    805,615.95x = 1,111,724.55 × 443,038.68
  4. Step 4: Simplify right side
    805,615.95x = 492,536,977,155.59
  5. Step 5: Solve for x
    x = 492,536,977,155.59/805,615.95
  6. Step 6: Final answer
    x = 611,379.38

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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.