Home / 319,336.08-440,686.56-176,101.20

Finding the Fourth Proportional to 319,336.08, 440,686.56 and 176,101.20

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Solution

The fourth proportional to 319,336.08, 440,686.56 and 176,101.20 is: 243,021.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,336.08 : 440,686.56 = 176,101.20 : x
  2. Step 2: Convert to fraction form
    319,336.08/440,686.56 = 176,101.20/x
  3. Step 3: Cross multiply
    319,336.08x = 440,686.56 × 176,101.20
  4. Step 4: Simplify right side
    319,336.08x = 77,605,432,039.87
  5. Step 5: Solve for x
    x = 77,605,432,039.87/319,336.08
  6. Step 6: Final answer
    x = 243,021.18

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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.