Home / 561,280.14-774,549.29-319,597.20

Finding the Fourth Proportional to 561,280.14, 774,549.29 and 319,597.20

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Solution

The fourth proportional to 561,280.14, 774,549.29 and 319,597.20 is: 441,034.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,280.14 : 774,549.29 = 319,597.20 : x
  2. Step 2: Convert to fraction form
    561,280.14/774,549.29 = 319,597.20/x
  3. Step 3: Cross multiply
    561,280.14x = 774,549.29 × 319,597.20
  4. Step 4: Simplify right side
    561,280.14x = 247,543,782,748.00
  5. Step 5: Solve for x
    x = 247,543,782,748.00/561,280.14
  6. Step 6: Final answer
    x = 441,034.28

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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.