Home / 319,312.10-440,653.77-176,077.22

Finding the Fourth Proportional to 319,312.10, 440,653.77 and 176,077.22

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Solution

The fourth proportional to 319,312.10, 440,653.77 and 176,077.22 is: 242,988.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,312.10 : 440,653.77 = 176,077.22 : x
  2. Step 2: Convert to fraction form
    319,312.10/440,653.77 = 176,077.22/x
  3. Step 3: Cross multiply
    319,312.10x = 440,653.77 × 176,077.22
  4. Step 4: Simplify right side
    319,312.10x = 77,589,090,804.12
  5. Step 5: Solve for x
    x = 77,589,090,804.12/319,312.10
  6. Step 6: Final answer
    x = 242,988.26

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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.