Home / 678,284.24-936,074.76-376,483.28

Finding the Fourth Proportional to 678,284.24, 936,074.76 and 376,483.28

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Solution

The fourth proportional to 678,284.24, 936,074.76 and 376,483.28 is: 519,570.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,284.24 : 936,074.76 = 376,483.28 : x
  2. Step 2: Convert to fraction form
    678,284.24/936,074.76 = 376,483.28/x
  3. Step 3: Cross multiply
    678,284.24x = 936,074.76 × 376,483.28
  4. Step 4: Simplify right side
    678,284.24x = 352,416,495,970.01
  5. Step 5: Solve for x
    x = 352,416,495,970.01/678,284.24
  6. Step 6: Final answer
    x = 519,570.52

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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.