Home / 870,149.39-1,305,259.08-414,506.39

Finding the Fourth Proportional to 870,149.39, 1,305,259.08 and 414,506.39

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Solution

The fourth proportional to 870,149.39, 1,305,259.08 and 414,506.39 is: 621,776.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,149.39 : 1,305,259.08 = 414,506.39 : x
  2. Step 2: Convert to fraction form
    870,149.39/1,305,259.08 = 414,506.39/x
  3. Step 3: Cross multiply
    870,149.39x = 1,305,259.08 × 414,506.39
  4. Step 4: Simplify right side
    870,149.39x = 541,038,227,192.99
  5. Step 5: Solve for x
    x = 541,038,227,192.99/870,149.39
  6. Step 6: Final answer
    x = 621,776.25

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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.