Home / 926,557.13-1,278,670.47-518,648.81

Finding the Fourth Proportional to 926,557.13, 1,278,670.47 and 518,648.81

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Solution

The fourth proportional to 926,557.13, 1,278,670.47 and 518,648.81 is: 715,747.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,557.13 : 1,278,670.47 = 518,648.81 : x
  2. Step 2: Convert to fraction form
    926,557.13/1,278,670.47 = 518,648.81/x
  3. Step 3: Cross multiply
    926,557.13x = 1,278,670.47 × 518,648.81
  4. Step 4: Simplify right side
    926,557.13x = 663,180,917,647.64
  5. Step 5: Solve for x
    x = 663,180,917,647.64/926,557.13
  6. Step 6: Final answer
    x = 715,747.47

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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.