Home / 1,411,331.40-2,117,128.38-400,478.13

Finding the Fourth Proportional to 1,411,331.40, 2,117,128.38 and 400,478.13

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Solution

The fourth proportional to 1,411,331.40, 2,117,128.38 and 400,478.13 is: 600,754.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,411,331.40 : 2,117,128.38 = 400,478.13 : x
  2. Step 2: Convert to fraction form
    1,411,331.40/2,117,128.38 = 400,478.13/x
  3. Step 3: Cross multiply
    1,411,331.40x = 2,117,128.38 × 400,478.13
  4. Step 4: Simplify right side
    1,411,331.40x = 847,863,614,592.33
  5. Step 5: Solve for x
    x = 847,863,614,592.33/1,411,331.40
  6. Step 6: Final answer
    x = 600,754.45

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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.