Home / 836,795.60-1,154,779.40-454,821.36

Finding the Fourth Proportional to 836,795.60, 1,154,779.40 and 454,821.36

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Solution

The fourth proportional to 836,795.60, 1,154,779.40 and 454,821.36 is: 627,654.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    836,795.60 : 1,154,779.40 = 454,821.36 : x
  2. Step 2: Convert to fraction form
    836,795.60/1,154,779.40 = 454,821.36/x
  3. Step 3: Cross multiply
    836,795.60x = 1,154,779.40 × 454,821.36
  4. Step 4: Simplify right side
    836,795.60x = 525,218,337,207.98
  5. Step 5: Solve for x
    x = 525,218,337,207.98/836,795.60
  6. Step 6: Final answer
    x = 627,654.28

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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.