Home / 886,819.20-1,223,815.43-484,411.20

Finding the Fourth Proportional to 886,819.20, 1,223,815.43 and 484,411.20

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Solution

The fourth proportional to 886,819.20, 1,223,815.43 and 484,411.20 is: 668,490.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,819.20 : 1,223,815.43 = 484,411.20 : x
  2. Step 2: Convert to fraction form
    886,819.20/1,223,815.43 = 484,411.20/x
  3. Step 3: Cross multiply
    886,819.20x = 1,223,815.43 × 484,411.20
  4. Step 4: Simplify right side
    886,819.20x = 592,829,901,024.82
  5. Step 5: Solve for x
    x = 592,829,901,024.82/886,819.20
  6. Step 6: Final answer
    x = 668,490.15

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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.