Home / 816,949.60-1,127,081.20-506,708.68

Finding the Fourth Proportional to 816,949.60, 1,127,081.20 and 506,708.68

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Solution

The fourth proportional to 816,949.60, 1,127,081.20 and 506,708.68 is: 699,066.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,949.60 : 1,127,081.20 = 506,708.68 : x
  2. Step 2: Convert to fraction form
    816,949.60/1,127,081.20 = 506,708.68/x
  3. Step 3: Cross multiply
    816,949.60x = 1,127,081.20 × 506,708.68
  4. Step 4: Simplify right side
    816,949.60x = 571,101,827,104.82
  5. Step 5: Solve for x
    x = 571,101,827,104.82/816,949.60
  6. Step 6: Final answer
    x = 699,066.17

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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.