Home / 714,517,779.20-1,071,776,668.80-708,471,161.60

Finding the Fourth Proportional to 714,517,779.20, 1,071,776,668.80 and 708,471,161.60

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Solution

The fourth proportional to 714,517,779.20, 1,071,776,668.80 and 708,471,161.60 is: 1,062,706,742.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,517,779.20 : 1,071,776,668.80 = 708,471,161.60 : x
  2. Step 2: Convert to fraction form
    714,517,779.20/1,071,776,668.80 = 708,471,161.60/x
  3. Step 3: Cross multiply
    714,517,779.20x = 1,071,776,668.80 × 708,471,161.60
  4. Step 4: Simplify right side
    714,517,779.20x = 759,322,861,520,514,432
  5. Step 5: Solve for x
    x = 759,322,861,520,514,432/714,517,779.20
  6. Step 6: Final answer
    x = 1,062,706,742.40

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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.