Home / 990,068.45-1,366,060.28-560,348.57

Finding the Fourth Proportional to 990,068.45, 1,366,060.28 and 560,348.57

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Solution

The fourth proportional to 990,068.45, 1,366,060.28 and 560,348.57 is: 773,148.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,068.45 : 1,366,060.28 = 560,348.57 : x
  2. Step 2: Convert to fraction form
    990,068.45/1,366,060.28 = 560,348.57/x
  3. Step 3: Cross multiply
    990,068.45x = 1,366,060.28 × 560,348.57
  4. Step 4: Simplify right side
    990,068.45x = 765,469,925,045.21
  5. Step 5: Solve for x
    x = 765,469,925,045.21/990,068.45
  6. Step 6: Final answer
    x = 773,148.49

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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.