Home / 877,787.39-1,211,445.11-495,838.77

Finding the Fourth Proportional to 877,787.39, 1,211,445.11 and 495,838.77

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Solution

The fourth proportional to 877,787.39, 1,211,445.11 and 495,838.77 is: 684,313.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,787.39 : 1,211,445.11 = 495,838.77 : x
  2. Step 2: Convert to fraction form
    877,787.39/1,211,445.11 = 495,838.77/x
  3. Step 3: Cross multiply
    877,787.39x = 1,211,445.11 × 495,838.77
  4. Step 4: Simplify right side
    877,787.39x = 600,681,453,264.92
  5. Step 5: Solve for x
    x = 600,681,453,264.92/877,787.39
  6. Step 6: Final answer
    x = 684,313.15

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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.