Home / 877,913.32-1,211,512.80-475,505.32

Finding the Fourth Proportional to 877,913.32, 1,211,512.80 and 475,505.32

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Solution

The fourth proportional to 877,913.32, 1,211,512.80 and 475,505.32 is: 656,193.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,913.32 : 1,211,512.80 = 475,505.32 : x
  2. Step 2: Convert to fraction form
    877,913.32/1,211,512.80 = 475,505.32/x
  3. Step 3: Cross multiply
    877,913.32x = 1,211,512.80 × 475,505.32
  4. Step 4: Simplify right side
    877,913.32x = 576,080,781,648.10
  5. Step 5: Solve for x
    x = 576,080,781,648.10/877,913.32
  6. Step 6: Final answer
    x = 656,193.24

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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.