Home / 818,962.95-1,130,169.96-456,378.86

Finding the Fourth Proportional to 818,962.95, 1,130,169.96 and 456,378.86

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Solution

The fourth proportional to 818,962.95, 1,130,169.96 and 456,378.86 is: 629,803.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,962.95 : 1,130,169.96 = 456,378.86 : x
  2. Step 2: Convert to fraction form
    818,962.95/1,130,169.96 = 456,378.86/x
  3. Step 3: Cross multiply
    818,962.95x = 1,130,169.96 × 456,378.86
  4. Step 4: Simplify right side
    818,962.95x = 515,785,671,159.25
  5. Step 5: Solve for x
    x = 515,785,671,159.25/818,962.95
  6. Step 6: Final answer
    x = 629,803.43

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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.