Home / 877,840.83-1,211,519.03-495,892.35

Finding the Fourth Proportional to 877,840.83, 1,211,519.03 and 495,892.35

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Solution

The fourth proportional to 877,840.83, 1,211,519.03 and 495,892.35 is: 684,387.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,840.83 : 1,211,519.03 = 495,892.35 : x
  2. Step 2: Convert to fraction form
    877,840.83/1,211,519.03 = 495,892.35/x
  3. Step 3: Cross multiply
    877,840.83x = 1,211,519.03 × 495,892.35
  4. Step 4: Simplify right side
    877,840.83x = 600,783,016,376.96
  5. Step 5: Solve for x
    x = 600,783,016,376.96/877,840.83
  6. Step 6: Final answer
    x = 684,387.19

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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.