Home / 781,121.34-1,077,896.57-436,897.67

Finding the Fourth Proportional to 781,121.34, 1,077,896.57 and 436,897.67

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Solution

The fourth proportional to 781,121.34, 1,077,896.57 and 436,897.67 is: 602,890.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,121.34 : 1,077,896.57 = 436,897.67 : x
  2. Step 2: Convert to fraction form
    781,121.34/1,077,896.57 = 436,897.67/x
  3. Step 3: Cross multiply
    781,121.34x = 1,077,896.57 × 436,897.67
  4. Step 4: Simplify right side
    781,121.34x = 470,930,492,360.02
  5. Step 5: Solve for x
    x = 470,930,492,360.02/781,121.34
  6. Step 6: Final answer
    x = 602,890.32

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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.