Home / 930,830.15-1,284,563.03-517,405.74

Finding the Fourth Proportional to 930,830.15, 1,284,563.03 and 517,405.74

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Solution

The fourth proportional to 930,830.15, 1,284,563.03 and 517,405.74 is: 714,029.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    930,830.15 : 1,284,563.03 = 517,405.74 : x
  2. Step 2: Convert to fraction form
    930,830.15/1,284,563.03 = 517,405.74/x
  3. Step 3: Cross multiply
    930,830.15x = 1,284,563.03 × 517,405.74
  4. Step 4: Simplify right side
    930,830.15x = 664,640,282,526.76
  5. Step 5: Solve for x
    x = 664,640,282,526.76/930,830.15
  6. Step 6: Final answer
    x = 714,029.61

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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.