Home / 915,854,878.80-1,263,764,746.44-619,142,573.52

Finding the Fourth Proportional to 915,854,878.80, 1,263,764,746.44 and 619,142,573.52

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Solution

The fourth proportional to 915,854,878.80, 1,263,764,746.44 and 619,142,573.52 is: 854,339,017.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,854,878.80 : 1,263,764,746.44 = 619,142,573.52 : x
  2. Step 2: Convert to fraction form
    915,854,878.80/1,263,764,746.44 = 619,142,573.52/x
  3. Step 3: Cross multiply
    915,854,878.80x = 1,263,764,746.44 × 619,142,573.52
  4. Step 4: Simplify right side
    915,854,878.80x = 782,450,557,434,711,808
  5. Step 5: Solve for x
    x = 782,450,557,434,711,808/915,854,878.80
  6. Step 6: Final answer
    x = 854,339,017.62

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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.