Home / 926,856.02-1,278,764.07-518,897.90

Finding the Fourth Proportional to 926,856.02, 1,278,764.07 and 518,897.90

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Solution

The fourth proportional to 926,856.02, 1,278,764.07 and 518,897.90 is: 715,912.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,856.02 : 1,278,764.07 = 518,897.90 : x
  2. Step 2: Convert to fraction form
    926,856.02/1,278,764.07 = 518,897.90/x
  3. Step 3: Cross multiply
    926,856.02x = 1,278,764.07 × 518,897.90
  4. Step 4: Simplify right side
    926,856.02x = 663,547,990,518.45
  5. Step 5: Solve for x
    x = 663,547,990,518.45/926,856.02
  6. Step 6: Final answer
    x = 715,912.69

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Double scale
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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.