Home / 876,364.66-1,210,120.68-554,642.38

Finding the Fourth Proportional to 876,364.66, 1,210,120.68 and 554,642.38

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Solution

The fourth proportional to 876,364.66, 1,210,120.68 and 554,642.38 is: 765,873.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,364.66 : 1,210,120.68 = 554,642.38 : x
  2. Step 2: Convert to fraction form
    876,364.66/1,210,120.68 = 554,642.38/x
  3. Step 3: Cross multiply
    876,364.66x = 1,210,120.68 × 554,642.38
  4. Step 4: Simplify right side
    876,364.66x = 671,184,214,042.42
  5. Step 5: Solve for x
    x = 671,184,214,042.42/876,364.66
  6. Step 6: Final answer
    x = 765,873.21

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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.