Home / 1,295,199.76-1,787,387.28-714,445.12

Finding the Fourth Proportional to 1,295,199.76, 1,787,387.28 and 714,445.12

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Solution

The fourth proportional to 1,295,199.76, 1,787,387.28 and 714,445.12 is: 985,940.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,295,199.76 : 1,787,387.28 = 714,445.12 : x
  2. Step 2: Convert to fraction form
    1,295,199.76/1,787,387.28 = 714,445.12/x
  3. Step 3: Cross multiply
    1,295,199.76x = 1,787,387.28 × 714,445.12
  4. Step 4: Simplify right side
    1,295,199.76x = 1,276,990,119,746.07
  5. Step 5: Solve for x
    x = 1,276,990,119,746.07/1,295,199.76
  6. Step 6: Final answer
    x = 985,940.67

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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.