Home / 839,543.51-1,259,314.92-208,457.32

Finding the Fourth Proportional to 839,543.51, 1,259,314.92 and 208,457.32

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Solution

The fourth proportional to 839,543.51, 1,259,314.92 and 208,457.32 is: 312,685.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,543.51 : 1,259,314.92 = 208,457.32 : x
  2. Step 2: Convert to fraction form
    839,543.51/1,259,314.92 = 208,457.32/x
  3. Step 3: Cross multiply
    839,543.51x = 1,259,314.92 × 208,457.32
  4. Step 4: Simplify right side
    839,543.51x = 262,513,416,600.25
  5. Step 5: Solve for x
    x = 262,513,416,600.25/839,543.51
  6. Step 6: Final answer
    x = 312,685.90

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Double scale
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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.