Home / 808,534.60-1,213,385.10-453,171.40

Finding the Fourth Proportional to 808,534.60, 1,213,385.10 and 453,171.40

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Solution

The fourth proportional to 808,534.60, 1,213,385.10 and 453,171.40 is: 680,083.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,534.60 : 1,213,385.10 = 453,171.40 : x
  2. Step 2: Convert to fraction form
    808,534.60/1,213,385.10 = 453,171.40/x
  3. Step 3: Cross multiply
    808,534.60x = 1,213,385.10 × 453,171.40
  4. Step 4: Simplify right side
    808,534.60x = 549,871,424,506.14
  5. Step 5: Solve for x
    x = 549,871,424,506.14/808,534.60
  6. Step 6: Final answer
    x = 680,083.97

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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.