Home / 811,549.13-1,119,989.63-453,853.13

Finding the Fourth Proportional to 811,549.13, 1,119,989.63 and 453,853.13

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Solution

The fourth proportional to 811,549.13, 1,119,989.63 and 453,853.13 is: 626,346.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,549.13 : 1,119,989.63 = 453,853.13 : x
  2. Step 2: Convert to fraction form
    811,549.13/1,119,989.63 = 453,853.13/x
  3. Step 3: Cross multiply
    811,549.13x = 1,119,989.63 × 453,853.13
  4. Step 4: Simplify right side
    811,549.13x = 508,310,794,677.73
  5. Step 5: Solve for x
    x = 508,310,794,677.73/811,549.13
  6. Step 6: Final answer
    x = 626,346.30

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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.