Home / 1,129,440.27-1,558,652.72-620,144.67

Finding the Fourth Proportional to 1,129,440.27, 1,558,652.72 and 620,144.67

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Solution

The fourth proportional to 1,129,440.27, 1,558,652.72 and 620,144.67 is: 855,813.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,129,440.27 : 1,558,652.72 = 620,144.67 : x
  2. Step 2: Convert to fraction form
    1,129,440.27/1,558,652.72 = 620,144.67/x
  3. Step 3: Cross multiply
    1,129,440.27x = 1,558,652.72 × 620,144.67
  4. Step 4: Simplify right side
    1,129,440.27x = 966,590,173,588.28
  5. Step 5: Solve for x
    x = 966,590,173,588.28/1,129,440.27
  6. Step 6: Final answer
    x = 855,813.45

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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.