Home / 911,921.60-1,365,808.80-575,998.40

Finding the Fourth Proportional to 911,921.60, 1,365,808.80 and 575,998.40

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Solution

The fourth proportional to 911,921.60, 1,365,808.80 and 575,998.40 is: 862,687.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,921.60 : 1,365,808.80 = 575,998.40 : x
  2. Step 2: Convert to fraction form
    911,921.60/1,365,808.80 = 575,998.40/x
  3. Step 3: Cross multiply
    911,921.60x = 1,365,808.80 × 575,998.40
  4. Step 4: Simplify right side
    911,921.60x = 786,703,683,505.92
  5. Step 5: Solve for x
    x = 786,703,683,505.92/911,921.60
  6. Step 6: Final answer
    x = 862,687.85

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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.