Home / 879,263.64-1,213,611.89-497,511.86

Finding the Fourth Proportional to 879,263.64, 1,213,611.89 and 497,511.86

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Solution

The fourth proportional to 879,263.64, 1,213,611.89 and 497,511.86 is: 686,695.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,263.64 : 1,213,611.89 = 497,511.86 : x
  2. Step 2: Convert to fraction form
    879,263.64/1,213,611.89 = 497,511.86/x
  3. Step 3: Cross multiply
    879,263.64x = 1,213,611.89 × 497,511.86
  4. Step 4: Simplify right side
    879,263.64x = 603,786,300,156.40
  5. Step 5: Solve for x
    x = 603,786,300,156.40/879,263.64
  6. Step 6: Final answer
    x = 686,695.40

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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.