Home / 705,631.86-1,053,115.28-637,530.78

Finding the Fourth Proportional to 705,631.86, 1,053,115.28 and 637,530.78

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Solution

The fourth proportional to 705,631.86, 1,053,115.28 and 637,530.78 is: 951,478.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,631.86 : 1,053,115.28 = 637,530.78 : x
  2. Step 2: Convert to fraction form
    705,631.86/1,053,115.28 = 637,530.78/x
  3. Step 3: Cross multiply
    705,631.86x = 1,053,115.28 × 637,530.78
  4. Step 4: Simplify right side
    705,631.86x = 671,393,402,700.66
  5. Step 5: Solve for x
    x = 671,393,402,700.66/705,631.86
  6. Step 6: Final answer
    x = 951,478.30

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.