Home / 819,513.30-1,130,845.59-456,903.12

Finding the Fourth Proportional to 819,513.30, 1,130,845.59 and 456,903.12

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Solution

The fourth proportional to 819,513.30, 1,130,845.59 and 456,903.12 is: 630,480.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,513.30 : 1,130,845.59 = 456,903.12 : x
  2. Step 2: Convert to fraction form
    819,513.30/1,130,845.59 = 456,903.12/x
  3. Step 3: Cross multiply
    819,513.30x = 1,130,845.59 × 456,903.12
  4. Step 4: Simplify right side
    819,513.30x = 516,686,878,309.24
  5. Step 5: Solve for x
    x = 516,686,878,309.24/819,513.30
  6. Step 6: Final answer
    x = 630,480.16

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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.