Home / 926,411.85-1,278,156.98-518,448.87

Finding the Fourth Proportional to 926,411.85, 1,278,156.98 and 518,448.87

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Solution

The fourth proportional to 926,411.85, 1,278,156.98 and 518,448.87 is: 715,296.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,411.85 : 1,278,156.98 = 518,448.87 : x
  2. Step 2: Convert to fraction form
    926,411.85/1,278,156.98 = 518,448.87/x
  3. Step 3: Cross multiply
    926,411.85x = 1,278,156.98 × 518,448.87
  4. Step 4: Simplify right side
    926,411.85x = 662,659,043,259.74
  5. Step 5: Solve for x
    x = 662,659,043,259.74/926,411.85
  6. Step 6: Final answer
    x = 715,296.38

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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.