Home / 989,440.44-1,365,428.28-559,711.44

Finding the Fourth Proportional to 989,440.44, 1,365,428.28 and 559,711.44

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Solution

The fourth proportional to 989,440.44, 1,365,428.28 and 559,711.44 is: 772,402.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,440.44 : 1,365,428.28 = 559,711.44 : x
  2. Step 2: Convert to fraction form
    989,440.44/1,365,428.28 = 559,711.44/x
  3. Step 3: Cross multiply
    989,440.44x = 1,365,428.28 × 559,711.44
  4. Step 4: Simplify right side
    989,440.44x = 764,245,828,815.52
  5. Step 5: Solve for x
    x = 764,245,828,815.52/989,440.44
  6. Step 6: Final answer
    x = 772,402.05

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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.