Home / 763,039.39-1,144,547.44-257,955.17

Finding the Fourth Proportional to 763,039.39, 1,144,547.44 and 257,955.17

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Solution

The fourth proportional to 763,039.39, 1,144,547.44 and 257,955.17 is: 386,928.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,039.39 : 1,144,547.44 = 257,955.17 : x
  2. Step 2: Convert to fraction form
    763,039.39/1,144,547.44 = 257,955.17/x
  3. Step 3: Cross multiply
    763,039.39x = 1,144,547.44 × 257,955.17
  4. Step 4: Simplify right side
    763,039.39x = 295,241,922,445.75
  5. Step 5: Solve for x
    x = 295,241,922,445.75/763,039.39
  6. Step 6: Final answer
    x = 386,928.81

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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.