Home / 877,181.40-1,312,856.10-636,611.40

Finding the Fourth Proportional to 877,181.40, 1,312,856.10 and 636,611.40

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Solution

The fourth proportional to 877,181.40, 1,312,856.10 and 636,611.40 is: 952,800.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,181.40 : 1,312,856.10 = 636,611.40 : x
  2. Step 2: Convert to fraction form
    877,181.40/1,312,856.10 = 636,611.40/x
  3. Step 3: Cross multiply
    877,181.40x = 1,312,856.10 × 636,611.40
  4. Step 4: Simplify right side
    877,181.40x = 835,779,159,819.54
  5. Step 5: Solve for x
    x = 835,779,159,819.54/877,181.40
  6. Step 6: Final answer
    x = 952,800.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.