Home / 1,220,510.86-1,684,404.80-676,817.20

Finding the Fourth Proportional to 1,220,510.86, 1,684,404.80 and 676,817.20

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Solution

The fourth proportional to 1,220,510.86, 1,684,404.80 and 676,817.20 is: 934,063.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,510.86 : 1,684,404.80 = 676,817.20 : x
  2. Step 2: Convert to fraction form
    1,220,510.86/1,684,404.80 = 676,817.20/x
  3. Step 3: Cross multiply
    1,220,510.86x = 1,684,404.80 × 676,817.20
  4. Step 4: Simplify right side
    1,220,510.86x = 1,140,034,133,672.58
  5. Step 5: Solve for x
    x = 1,140,034,133,672.58/1,220,510.86
  6. Step 6: Final answer
    x = 934,063.08

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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.