Home / 805,440.50-1,111,512.02-442,887.74

Finding the Fourth Proportional to 805,440.50, 1,111,512.02 and 442,887.74

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Solution

The fourth proportional to 805,440.50, 1,111,512.02 and 442,887.74 is: 611,187.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,440.50 : 1,111,512.02 = 442,887.74 : x
  2. Step 2: Convert to fraction form
    805,440.50/1,111,512.02 = 442,887.74/x
  3. Step 3: Cross multiply
    805,440.50x = 1,111,512.02 × 442,887.74
  4. Step 4: Simplify right side
    805,440.50x = 492,275,038,748.64
  5. Step 5: Solve for x
    x = 492,275,038,748.64/805,440.50
  6. Step 6: Final answer
    x = 611,187.35

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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.