Home / 910,117.98-1,256,212.62-528,267.78

Finding the Fourth Proportional to 910,117.98, 1,256,212.62 and 528,267.78

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Solution

The fourth proportional to 910,117.98, 1,256,212.62 and 528,267.78 is: 729,154.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,117.98 : 1,256,212.62 = 528,267.78 : x
  2. Step 2: Convert to fraction form
    910,117.98/1,256,212.62 = 528,267.78/x
  3. Step 3: Cross multiply
    910,117.98x = 1,256,212.62 × 528,267.78
  4. Step 4: Simplify right side
    910,117.98x = 663,616,651,975.38
  5. Step 5: Solve for x
    x = 663,616,651,975.38/910,117.98
  6. Step 6: Final answer
    x = 729,154.53

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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.