Home / 810,139.68-1,118,058.12-447,595.16

Finding the Fourth Proportional to 810,139.68, 1,118,058.12 and 447,595.16

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Solution

The fourth proportional to 810,139.68, 1,118,058.12 and 447,595.16 is: 617,717.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,139.68 : 1,118,058.12 = 447,595.16 : x
  2. Step 2: Convert to fraction form
    810,139.68/1,118,058.12 = 447,595.16/x
  3. Step 3: Cross multiply
    810,139.68x = 1,118,058.12 × 447,595.16
  4. Step 4: Simplify right side
    810,139.68x = 500,437,397,520.41
  5. Step 5: Solve for x
    x = 500,437,397,520.41/810,139.68
  6. Step 6: Final answer
    x = 617,717.43

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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.