Home / 877,809.60-1,211,451.84-495,906.48

Finding the Fourth Proportional to 877,809.60, 1,211,451.84 and 495,906.48

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Solution

The fourth proportional to 877,809.60, 1,211,451.84 and 495,906.48 is: 684,393.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,809.60 : 1,211,451.84 = 495,906.48 : x
  2. Step 2: Convert to fraction form
    877,809.60/1,211,451.84 = 495,906.48/x
  3. Step 3: Cross multiply
    877,809.60x = 1,211,451.84 × 495,906.48
  4. Step 4: Simplify right side
    877,809.60x = 600,766,817,663.92
  5. Step 5: Solve for x
    x = 600,766,817,663.92/877,809.60
  6. Step 6: Final answer
    x = 684,393.08

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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.