Home / 951,280.21-1,312,779.50-521,559.33

Finding the Fourth Proportional to 951,280.21, 1,312,779.50 and 521,559.33

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Solution

The fourth proportional to 951,280.21, 1,312,779.50 and 521,559.33 is: 719,758.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    951,280.21 : 1,312,779.50 = 521,559.33 : x
  2. Step 2: Convert to fraction form
    951,280.21/1,312,779.50 = 521,559.33/x
  3. Step 3: Cross multiply
    951,280.21x = 1,312,779.50 × 521,559.33
  4. Step 4: Simplify right side
    951,280.21x = 684,692,396,457.74
  5. Step 5: Solve for x
    x = 684,692,396,457.74/951,280.21
  6. Step 6: Final answer
    x = 719,758.90

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Double scale
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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.