Home / 887,654.55-1,330,607.02-438,007.35

Finding the Fourth Proportional to 887,654.55, 1,330,607.02 and 438,007.35

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Solution

The fourth proportional to 887,654.55, 1,330,607.02 and 438,007.35 is: 656,579.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,654.55 : 1,330,607.02 = 438,007.35 : x
  2. Step 2: Convert to fraction form
    887,654.55/1,330,607.02 = 438,007.35/x
  3. Step 3: Cross multiply
    887,654.55x = 1,330,607.02 × 438,007.35
  4. Step 4: Simplify right side
    887,654.55x = 582,815,654,721.60
  5. Step 5: Solve for x
    x = 582,815,654,721.60/887,654.55
  6. Step 6: Final answer
    x = 656,579.36

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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.