Home / 926,555.13-1,278,667.71-518,646.81

Finding the Fourth Proportional to 926,555.13, 1,278,667.71 and 518,646.81

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Solution

The fourth proportional to 926,555.13, 1,278,667.71 and 518,646.81 is: 715,744.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,555.13 : 1,278,667.71 = 518,646.81 : x
  2. Step 2: Convert to fraction form
    926,555.13/1,278,667.71 = 518,646.81/x
  3. Step 3: Cross multiply
    926,555.13x = 1,278,667.71 × 518,646.81
  4. Step 4: Simplify right side
    926,555.13x = 663,176,928,841.51
  5. Step 5: Solve for x
    x = 663,176,928,841.51/926,555.13
  6. Step 6: Final answer
    x = 715,744.71

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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.