Home / 558,516.96-771,218.76-517,994.64

Finding the Fourth Proportional to 558,516.96, 771,218.76 and 517,994.64

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Solution

The fourth proportional to 558,516.96, 771,218.76 and 517,994.64 is: 715,264.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,516.96 : 771,218.76 = 517,994.64 : x
  2. Step 2: Convert to fraction form
    558,516.96/771,218.76 = 517,994.64/x
  3. Step 3: Cross multiply
    558,516.96x = 771,218.76 × 517,994.64
  4. Step 4: Simplify right side
    558,516.96x = 399,487,183,947.45
  5. Step 5: Solve for x
    x = 399,487,183,947.45/558,516.96
  6. Step 6: Final answer
    x = 715,264.20

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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.