Home / 699,354.09-1,047,642.23-538,873.24

Finding the Fourth Proportional to 699,354.09, 1,047,642.23 and 538,873.24

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Solution

The fourth proportional to 699,354.09, 1,047,642.23 and 538,873.24 is: 807,239.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,354.09 : 1,047,642.23 = 538,873.24 : x
  2. Step 2: Convert to fraction form
    699,354.09/1,047,642.23 = 538,873.24/x
  3. Step 3: Cross multiply
    699,354.09x = 1,047,642.23 × 538,873.24
  4. Step 4: Simplify right side
    699,354.09x = 564,546,362,840.93
  5. Step 5: Solve for x
    x = 564,546,362,840.93/699,354.09
  6. Step 6: Final answer
    x = 807,239.67

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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.