Home / 805,615.02-1,111,726.56-443,038.90

Finding the Fourth Proportional to 805,615.02, 1,111,726.56 and 443,038.90

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Solution

The fourth proportional to 805,615.02, 1,111,726.56 and 443,038.90 is: 611,381.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,615.02 : 1,111,726.56 = 443,038.90 : x
  2. Step 2: Convert to fraction form
    805,615.02/1,111,726.56 = 443,038.90/x
  3. Step 3: Cross multiply
    805,615.02x = 1,111,726.56 × 443,038.90
  4. Step 4: Simplify right side
    805,615.02x = 492,538,112,243.18
  5. Step 5: Solve for x
    x = 492,538,112,243.18/805,615.02
  6. Step 6: Final answer
    x = 611,381.49

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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.