Home / 805,810.04-1,111,994.40-443,233.84

Finding the Fourth Proportional to 805,810.04, 1,111,994.40 and 443,233.84

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Solution

The fourth proportional to 805,810.04, 1,111,994.40 and 443,233.84 is: 611,649.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,810.04 : 1,111,994.40 = 443,233.84 : x
  2. Step 2: Convert to fraction form
    805,810.04/1,111,994.40 = 443,233.84/x
  3. Step 3: Cross multiply
    805,810.04x = 1,111,994.40 × 443,233.84
  4. Step 4: Simplify right side
    805,810.04x = 492,873,547,970.50
  5. Step 5: Solve for x
    x = 492,873,547,970.50/805,810.04
  6. Step 6: Final answer
    x = 611,649.80

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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.