Home / 805,602.18-1,111,759.55-443,054.08

Finding the Fourth Proportional to 805,602.18, 1,111,759.55 and 443,054.08

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Solution

The fourth proportional to 805,602.18, 1,111,759.55 and 443,054.08 is: 611,430.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,602.18 : 1,111,759.55 = 443,054.08 : x
  2. Step 2: Convert to fraction form
    805,602.18/1,111,759.55 = 443,054.08/x
  3. Step 3: Cross multiply
    805,602.18x = 1,111,759.55 × 443,054.08
  4. Step 4: Simplify right side
    805,602.18x = 492,569,602,934.70
  5. Step 5: Solve for x
    x = 492,569,602,934.70/805,602.18
  6. Step 6: Final answer
    x = 611,430.33

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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.