Home / 921,693.30-1,272,086.58-554,541.54

Finding the Fourth Proportional to 921,693.30, 1,272,086.58 and 554,541.54

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Solution

The fourth proportional to 921,693.30, 1,272,086.58 and 554,541.54 is: 765,357.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,693.30 : 1,272,086.58 = 554,541.54 : x
  2. Step 2: Convert to fraction form
    921,693.30/1,272,086.58 = 554,541.54/x
  3. Step 3: Cross multiply
    921,693.30x = 1,272,086.58 × 554,541.54
  4. Step 4: Simplify right side
    921,693.30x = 705,424,844,771.91
  5. Step 5: Solve for x
    x = 705,424,844,771.91/921,693.30
  6. Step 6: Final answer
    x = 765,357.46

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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.