Home / 836,987.20-1,155,017.28-455,004.16

Finding the Fourth Proportional to 836,987.20, 1,155,017.28 and 455,004.16

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Solution

The fourth proportional to 836,987.20, 1,155,017.28 and 455,004.16 is: 627,892.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    836,987.20 : 1,155,017.28 = 455,004.16 : x
  2. Step 2: Convert to fraction form
    836,987.20/1,155,017.28 = 455,004.16/x
  3. Step 3: Cross multiply
    836,987.20x = 1,155,017.28 × 455,004.16
  4. Step 4: Simplify right side
    836,987.20x = 525,537,667,271.89
  5. Step 5: Solve for x
    x = 525,537,667,271.89/836,987.20
  6. Step 6: Final answer
    x = 627,892.12

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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.