Home / 672,117.85-927,865.44-455,471.08

Finding the Fourth Proportional to 672,117.85, 927,865.44 and 455,471.08

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Solution

The fourth proportional to 672,117.85, 927,865.44 and 455,471.08 is: 628,782.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,117.85 : 927,865.44 = 455,471.08 : x
  2. Step 2: Convert to fraction form
    672,117.85/927,865.44 = 455,471.08/x
  3. Step 3: Cross multiply
    672,117.85x = 927,865.44 × 455,471.08
  4. Step 4: Simplify right side
    672,117.85x = 422,615,874,051.48
  5. Step 5: Solve for x
    x = 422,615,874,051.48/672,117.85
  6. Step 6: Final answer
    x = 628,782.40

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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.