Home / 809,938.29-1,117,726.65-470,406.54

Finding the Fourth Proportional to 809,938.29, 1,117,726.65 and 470,406.54

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Solution

The fourth proportional to 809,938.29, 1,117,726.65 and 470,406.54 is: 649,167.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,938.29 : 1,117,726.65 = 470,406.54 : x
  2. Step 2: Convert to fraction form
    809,938.29/1,117,726.65 = 470,406.54/x
  3. Step 3: Cross multiply
    809,938.29x = 1,117,726.65 × 470,406.54
  4. Step 4: Simplify right side
    809,938.29x = 525,785,926,092.29
  5. Step 5: Solve for x
    x = 525,785,926,092.29/809,938.29
  6. Step 6: Final answer
    x = 649,167.88

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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.