Home / 910,320.26-1,252,871.35-668,219.36

Finding the Fourth Proportional to 910,320.26, 1,252,871.35 and 668,219.36

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Solution

The fourth proportional to 910,320.26, 1,252,871.35 and 668,219.36 is: 919,668.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,320.26 : 1,252,871.35 = 668,219.36 : x
  2. Step 2: Convert to fraction form
    910,320.26/1,252,871.35 = 668,219.36/x
  3. Step 3: Cross multiply
    910,320.26x = 1,252,871.35 × 668,219.36
  4. Step 4: Simplify right side
    910,320.26x = 837,192,882,053.88
  5. Step 5: Solve for x
    x = 837,192,882,053.88/910,320.26
  6. Step 6: Final answer
    x = 919,668.52

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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.