Home / 1,109,078.80-1,663,612.80-434,683.60

Finding the Fourth Proportional to 1,109,078.80, 1,663,612.80 and 434,683.60

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Solution

The fourth proportional to 1,109,078.80, 1,663,612.80 and 434,683.60 is: 652,023.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,109,078.80 : 1,663,612.80 = 434,683.60 : x
  2. Step 2: Convert to fraction form
    1,109,078.80/1,663,612.80 = 434,683.60/x
  3. Step 3: Cross multiply
    1,109,078.80x = 1,663,612.80 × 434,683.60
  4. Step 4: Simplify right side
    1,109,078.80x = 723,145,200,910.08
  5. Step 5: Solve for x
    x = 723,145,200,910.08/1,109,078.80
  6. Step 6: Final answer
    x = 652,023.28

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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.