Home / 319,559.12-440,991.29-176,319.18

Finding the Fourth Proportional to 319,559.12, 440,991.29 and 176,319.18

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Solution

The fourth proportional to 319,559.12, 440,991.29 and 176,319.18 is: 243,320.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,559.12 : 440,991.29 = 176,319.18 : x
  2. Step 2: Convert to fraction form
    319,559.12/440,991.29 = 176,319.18/x
  3. Step 3: Cross multiply
    319,559.12x = 440,991.29 × 176,319.18
  4. Step 4: Simplify right side
    319,559.12x = 77,755,222,088.94
  5. Step 5: Solve for x
    x = 77,755,222,088.94/319,559.12
  6. Step 6: Final answer
    x = 243,320.30

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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.