Home / 884,394.08-1,220,456.40-497,211.21

Finding the Fourth Proportional to 884,394.08, 1,220,456.40 and 497,211.21

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Solution

The fourth proportional to 884,394.08, 1,220,456.40 and 497,211.21 is: 686,147.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    884,394.08 : 1,220,456.40 = 497,211.21 : x
  2. Step 2: Convert to fraction form
    884,394.08/1,220,456.40 = 497,211.21/x
  3. Step 3: Cross multiply
    884,394.08x = 1,220,456.40 × 497,211.21
  4. Step 4: Simplify right side
    884,394.08x = 606,824,601,531.70
  5. Step 5: Solve for x
    x = 606,824,601,531.70/884,394.08
  6. Step 6: Final answer
    x = 686,147.29

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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.