Home / 688,243.33-949,927.60-382,424.79

Finding the Fourth Proportional to 688,243.33, 949,927.60 and 382,424.79

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Solution

The fourth proportional to 688,243.33, 949,927.60 and 382,424.79 is: 527,830.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,243.33 : 949,927.60 = 382,424.79 : x
  2. Step 2: Convert to fraction form
    688,243.33/949,927.60 = 382,424.79/x
  3. Step 3: Cross multiply
    688,243.33x = 949,927.60 × 382,424.79
  4. Step 4: Simplify right side
    688,243.33x = 363,275,866,985.46
  5. Step 5: Solve for x
    x = 363,275,866,985.46/688,243.33
  6. Step 6: Final answer
    x = 527,830.57

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Double scale
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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.