Home / 805,297.95-1,111,203.50-499,262.81

Finding the Fourth Proportional to 805,297.95, 1,111,203.50 and 499,262.81

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Solution

The fourth proportional to 805,297.95, 1,111,203.50 and 499,262.81 is: 688,915.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,297.95 : 1,111,203.50 = 499,262.81 : x
  2. Step 2: Convert to fraction form
    805,297.95/1,111,203.50 = 499,262.81/x
  3. Step 3: Cross multiply
    805,297.95x = 1,111,203.50 × 499,262.81
  4. Step 4: Simplify right side
    805,297.95x = 554,782,573,839.50
  5. Step 5: Solve for x
    x = 554,782,573,839.50/805,297.95
  6. Step 6: Final answer
    x = 688,915.91

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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.