Home / 877,198.40-1,312,881.60-636,628.40

Finding the Fourth Proportional to 877,198.40, 1,312,881.60 and 636,628.40

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Solution

The fourth proportional to 877,198.40, 1,312,881.60 and 636,628.40 is: 952,826.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,198.40 : 1,312,881.60 = 636,628.40 : x
  2. Step 2: Convert to fraction form
    877,198.40/1,312,881.60 = 636,628.40/x
  3. Step 3: Cross multiply
    877,198.40x = 1,312,881.60 × 636,628.40
  4. Step 4: Simplify right side
    877,198.40x = 835,817,712,397.44
  5. Step 5: Solve for x
    x = 835,817,712,397.44/877,198.40
  6. Step 6: Final answer
    x = 952,826.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.