Home / 676,218.02-1,012,716.86-391,308.12

Finding the Fourth Proportional to 676,218.02, 1,012,716.86 and 391,308.12

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Solution

The fourth proportional to 676,218.02, 1,012,716.86 and 391,308.12 is: 586,030.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,218.02 : 1,012,716.86 = 391,308.12 : x
  2. Step 2: Convert to fraction form
    676,218.02/1,012,716.86 = 391,308.12/x
  3. Step 3: Cross multiply
    676,218.02x = 1,012,716.86 × 391,308.12
  4. Step 4: Simplify right side
    676,218.02x = 396,284,328,622.36
  5. Step 5: Solve for x
    x = 396,284,328,622.36/676,218.02
  6. Step 6: Final answer
    x = 586,030.42

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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.