Home / 405,984.12-560,253.96-224,696.40

Finding the Fourth Proportional to 405,984.12, 560,253.96 and 224,696.40

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Solution

The fourth proportional to 405,984.12, 560,253.96 and 224,696.40 is: 310,078.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,984.12 : 560,253.96 = 224,696.40 : x
  2. Step 2: Convert to fraction form
    405,984.12/560,253.96 = 224,696.40/x
  3. Step 3: Cross multiply
    405,984.12x = 560,253.96 × 224,696.40
  4. Step 4: Simplify right side
    405,984.12x = 125,887,047,897.74
  5. Step 5: Solve for x
    x = 125,887,047,897.74/405,984.12
  6. Step 6: Final answer
    x = 310,078.75

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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.