Home / 657,372.12-907,155.06-370,918.86

Finding the Fourth Proportional to 657,372.12, 907,155.06 and 370,918.86

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Solution

The fourth proportional to 657,372.12, 907,155.06 and 370,918.86 is: 511,857.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,372.12 : 907,155.06 = 370,918.86 : x
  2. Step 2: Convert to fraction form
    657,372.12/907,155.06 = 370,918.86/x
  3. Step 3: Cross multiply
    657,372.12x = 907,155.06 × 370,918.86
  4. Step 4: Simplify right side
    657,372.12x = 336,480,920,698.43
  5. Step 5: Solve for x
    x = 336,480,920,698.43/657,372.12
  6. Step 6: Final answer
    x = 511,857.61

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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.