Home / 884,354.21-1,220,256.54-497,115.79

Finding the Fourth Proportional to 884,354.21, 1,220,256.54 and 497,115.79

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Solution

The fourth proportional to 884,354.21, 1,220,256.54 and 497,115.79 is: 685,934.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    884,354.21 : 1,220,256.54 = 497,115.79 : x
  2. Step 2: Convert to fraction form
    884,354.21/1,220,256.54 = 497,115.79/x
  3. Step 3: Cross multiply
    884,354.21x = 1,220,256.54 × 497,115.79
  4. Step 4: Simplify right side
    884,354.21x = 606,608,793,884.77
  5. Step 5: Solve for x
    x = 606,608,793,884.77/884,354.21
  6. Step 6: Final answer
    x = 685,934.20

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Double scale
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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.