Home / 638,544.47-884,995.07-626,587.04

Finding the Fourth Proportional to 638,544.47, 884,995.07 and 626,587.04

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Solution

The fourth proportional to 638,544.47, 884,995.07 and 626,587.04 is: 868,422.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,544.47 : 884,995.07 = 626,587.04 : x
  2. Step 2: Convert to fraction form
    638,544.47/884,995.07 = 626,587.04/x
  3. Step 3: Cross multiply
    638,544.47x = 884,995.07 × 626,587.04
  4. Step 4: Simplify right side
    638,544.47x = 554,526,440,405.45
  5. Step 5: Solve for x
    x = 554,526,440,405.45/638,544.47
  6. Step 6: Final answer
    x = 868,422.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.