Home / 1,081,640.55-1,621,316.73-407,430.15

Finding the Fourth Proportional to 1,081,640.55, 1,621,316.73 and 407,430.15

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Solution

The fourth proportional to 1,081,640.55, 1,621,316.73 and 407,430.15 is: 610,714.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,081,640.55 : 1,621,316.73 = 407,430.15 : x
  2. Step 2: Convert to fraction form
    1,081,640.55/1,621,316.73 = 407,430.15/x
  3. Step 3: Cross multiply
    1,081,640.55x = 1,621,316.73 × 407,430.15
  4. Step 4: Simplify right side
    1,081,640.55x = 660,573,318,501.41
  5. Step 5: Solve for x
    x = 660,573,318,501.41/1,081,640.55
  6. Step 6: Final answer
    x = 610,714.27

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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.