Home / 839,409.36-1,158,385.08-457,436.20

Finding the Fourth Proportional to 839,409.36, 1,158,385.08 and 457,436.20

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Solution

The fourth proportional to 839,409.36, 1,158,385.08 and 457,436.20 is: 631,262.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,409.36 : 1,158,385.08 = 457,436.20 : x
  2. Step 2: Convert to fraction form
    839,409.36/1,158,385.08 = 457,436.20/x
  3. Step 3: Cross multiply
    839,409.36x = 1,158,385.08 × 457,436.20
  4. Step 4: Simplify right side
    839,409.36x = 529,887,269,131.90
  5. Step 5: Solve for x
    x = 529,887,269,131.90/839,409.36
  6. Step 6: Final answer
    x = 631,262.04

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.