Home / 312,018.12-430,582.32-176,053.08

Finding the Fourth Proportional to 312,018.12, 430,582.32 and 176,053.08

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Solution

The fourth proportional to 312,018.12, 430,582.32 and 176,053.08 is: 242,951.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,018.12 : 430,582.32 = 176,053.08 : x
  2. Step 2: Convert to fraction form
    312,018.12/430,582.32 = 176,053.08/x
  3. Step 3: Cross multiply
    312,018.12x = 430,582.32 × 176,053.08
  4. Step 4: Simplify right side
    312,018.12x = 75,805,343,629.55
  5. Step 5: Solve for x
    x = 75,805,343,629.55/312,018.12
  6. Step 6: Final answer
    x = 242,951.74

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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.