Home / 819,411.84-1,130,784.30-475,317.36

Finding the Fourth Proportional to 819,411.84, 1,130,784.30 and 475,317.36

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Solution

The fourth proportional to 819,411.84, 1,130,784.30 and 475,317.36 is: 655,935.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,411.84 : 1,130,784.30 = 475,317.36 : x
  2. Step 2: Convert to fraction form
    819,411.84/1,130,784.30 = 475,317.36/x
  3. Step 3: Cross multiply
    819,411.84x = 1,130,784.30 × 475,317.36
  4. Step 4: Simplify right side
    819,411.84x = 537,481,408,205.45
  5. Step 5: Solve for x
    x = 537,481,408,205.45/819,411.84
  6. Step 6: Final answer
    x = 655,935.61

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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.