Home / 664,836.77-990,930.77-626,999.24

Finding the Fourth Proportional to 664,836.77, 990,930.77 and 626,999.24

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Solution

The fourth proportional to 664,836.77, 990,930.77 and 626,999.24 is: 934,534.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,836.77 : 990,930.77 = 626,999.24 : x
  2. Step 2: Convert to fraction form
    664,836.77/990,930.77 = 626,999.24/x
  3. Step 3: Cross multiply
    664,836.77x = 990,930.77 × 626,999.24
  4. Step 4: Simplify right side
    664,836.77x = 621,312,841,376.19
  5. Step 5: Solve for x
    x = 621,312,841,376.19/664,836.77
  6. Step 6: Final answer
    x = 934,534.41

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1.5x scale

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.