Home / 877,900.02-1,211,600.36-495,951.42

Finding the Fourth Proportional to 877,900.02, 1,211,600.36 and 495,951.42

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Solution

The fourth proportional to 877,900.02, 1,211,600.36 and 495,951.42 is: 684,468.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,900.02 : 1,211,600.36 = 495,951.42 : x
  2. Step 2: Convert to fraction form
    877,900.02/1,211,600.36 = 495,951.42/x
  3. Step 3: Cross multiply
    877,900.02x = 1,211,600.36 × 495,951.42
  4. Step 4: Simplify right side
    877,900.02x = 600,894,919,014.51
  5. Step 5: Solve for x
    x = 600,894,919,014.51/877,900.02
  6. Step 6: Final answer
    x = 684,468.51

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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.