Home / 1,220,510.36-1,684,404.11-676,816.70

Finding the Fourth Proportional to 1,220,510.36, 1,684,404.11 and 676,816.70

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Solution

The fourth proportional to 1,220,510.36, 1,684,404.11 and 676,816.70 is: 934,062.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,510.36 : 1,684,404.11 = 676,816.70 : x
  2. Step 2: Convert to fraction form
    1,220,510.36/1,684,404.11 = 676,816.70/x
  3. Step 3: Cross multiply
    1,220,510.36x = 1,684,404.11 × 676,816.70
  4. Step 4: Simplify right side
    1,220,510.36x = 1,140,032,824,466.66
  5. Step 5: Solve for x
    x = 1,140,032,824,466.66/1,220,510.36
  6. Step 6: Final answer
    x = 934,062.39

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1.5x scale

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.