Home / 805,251.60-1,207,877.40-432,003.60

Finding the Fourth Proportional to 805,251.60, 1,207,877.40 and 432,003.60

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Solution

The fourth proportional to 805,251.60, 1,207,877.40 and 432,003.60 is: 648,005.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,251.60 : 1,207,877.40 = 432,003.60 : x
  2. Step 2: Convert to fraction form
    805,251.60/1,207,877.40 = 432,003.60/x
  3. Step 3: Cross multiply
    805,251.60x = 1,207,877.40 × 432,003.60
  4. Step 4: Simplify right side
    805,251.60x = 521,807,385,158.64
  5. Step 5: Solve for x
    x = 521,807,385,158.64/805,251.60
  6. Step 6: Final answer
    x = 648,005.40

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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.