Home / 621,027.60-931,541.40-516,051.60

Finding the Fourth Proportional to 621,027.60, 931,541.40 and 516,051.60

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Solution

The fourth proportional to 621,027.60, 931,541.40 and 516,051.60 is: 774,077.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,027.60 : 931,541.40 = 516,051.60 : x
  2. Step 2: Convert to fraction form
    621,027.60/931,541.40 = 516,051.60/x
  3. Step 3: Cross multiply
    621,027.60x = 931,541.40 × 516,051.60
  4. Step 4: Simplify right side
    621,027.60x = 480,723,429,936.24
  5. Step 5: Solve for x
    x = 480,723,429,936.24/621,027.60
  6. Step 6: Final answer
    x = 774,077.40

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Half scale
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Double scale
Find fourth proportional to 621,028.60, 931,542.90 and 516,052.60
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.