Home / 931,036.20-1,396,554.30-553,122.60

Finding the Fourth Proportional to 931,036.20, 1,396,554.30 and 553,122.60

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Solution

The fourth proportional to 931,036.20, 1,396,554.30 and 553,122.60 is: 829,683.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,036.20 : 1,396,554.30 = 553,122.60 : x
  2. Step 2: Convert to fraction form
    931,036.20/1,396,554.30 = 553,122.60/x
  3. Step 3: Cross multiply
    931,036.20x = 1,396,554.30 × 553,122.60
  4. Step 4: Simplify right side
    931,036.20x = 772,465,745,457.18
  5. Step 5: Solve for x
    x = 772,465,745,457.18/931,036.20
  6. Step 6: Final answer
    x = 829,683.90

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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.