Home / 985,622.40-1,477,340.10-386,384.40

Finding the Fourth Proportional to 985,622.40, 1,477,340.10 and 386,384.40

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Solution

The fourth proportional to 985,622.40, 1,477,340.10 and 386,384.40 is: 579,147.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,622.40 : 1,477,340.10 = 386,384.40 : x
  2. Step 2: Convert to fraction form
    985,622.40/1,477,340.10 = 386,384.40/x
  3. Step 3: Cross multiply
    985,622.40x = 1,477,340.10 × 386,384.40
  4. Step 4: Simplify right side
    985,622.40x = 570,821,168,134.44
  5. Step 5: Solve for x
    x = 570,821,168,134.44/985,622.40
  6. Step 6: Final answer
    x = 579,147.93

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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.