Home / 1,069,801.76-1,604,802.20-386,859.78

Finding the Fourth Proportional to 1,069,801.76, 1,604,802.20 and 386,859.78

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Solution

The fourth proportional to 1,069,801.76, 1,604,802.20 and 386,859.78 is: 580,325.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,069,801.76 : 1,604,802.20 = 386,859.78 : x
  2. Step 2: Convert to fraction form
    1,069,801.76/1,604,802.20 = 386,859.78/x
  3. Step 3: Cross multiply
    1,069,801.76x = 1,604,802.20 × 386,859.78
  4. Step 4: Simplify right side
    1,069,801.76x = 620,833,424,101.22
  5. Step 5: Solve for x
    x = 620,833,424,101.22/1,069,801.76
  6. Step 6: Final answer
    x = 580,325.67

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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.