Home / 691,244.09-953,918.85-400,911.63

Finding the Fourth Proportional to 691,244.09, 953,918.85 and 400,911.63

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Solution

The fourth proportional to 691,244.09, 953,918.85 and 400,911.63 is: 553,259.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,244.09 : 953,918.85 = 400,911.63 : x
  2. Step 2: Convert to fraction form
    691,244.09/953,918.85 = 400,911.63/x
  3. Step 3: Cross multiply
    691,244.09x = 953,918.85 × 400,911.63
  4. Step 4: Simplify right side
    691,244.09x = 382,437,161,041.23
  5. Step 5: Solve for x
    x = 382,437,161,041.23/691,244.09
  6. Step 6: Final answer
    x = 553,259.22

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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.