Home / 914,275,668.12-1,261,678,961.52-537,956,630.48

Finding the Fourth Proportional to 914,275,668.12, 1,261,678,961.52 and 537,956,630.48

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Solution

The fourth proportional to 914,275,668.12, 1,261,678,961.52 and 537,956,630.48 is: 742,367,522.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    914,275,668.12 : 1,261,678,961.52 = 537,956,630.48 : x
  2. Step 2: Convert to fraction form
    914,275,668.12/1,261,678,961.52 = 537,956,630.48/x
  3. Step 3: Cross multiply
    914,275,668.12x = 1,261,678,961.52 × 537,956,630.48
  4. Step 4: Simplify right side
    914,275,668.12x = 678,728,562,886,804,736
  5. Step 5: Solve for x
    x = 678,728,562,886,804,736/914,275,668.12
  6. Step 6: Final answer
    x = 742,367,522.79

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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.