Home / 839,455.40-1,259,183.10-709,547.60

Finding the Fourth Proportional to 839,455.40, 1,259,183.10 and 709,547.60

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Solution

The fourth proportional to 839,455.40, 1,259,183.10 and 709,547.60 is: 1,064,321.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,455.40 : 1,259,183.10 = 709,547.60 : x
  2. Step 2: Convert to fraction form
    839,455.40/1,259,183.10 = 709,547.60/x
  3. Step 3: Cross multiply
    839,455.40x = 1,259,183.10 × 709,547.60
  4. Step 4: Simplify right side
    839,455.40x = 893,450,346,565.56
  5. Step 5: Solve for x
    x = 893,450,346,565.56/839,455.40
  6. Step 6: Final answer
    x = 1,064,321.40

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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.