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Finding the Fourth Proportional to 456,574.92, 630,326.78 and 275,332.76

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Solution

The fourth proportional to 456,574.92, 630,326.78 and 275,332.76 is: 380,112.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,574.92 : 630,326.78 = 275,332.76 : x
  2. Step 2: Convert to fraction form
    456,574.92/630,326.78 = 275,332.76/x
  3. Step 3: Cross multiply
    456,574.92x = 630,326.78 × 275,332.76
  4. Step 4: Simplify right side
    456,574.92x = 173,549,612,039.31
  5. Step 5: Solve for x
    x = 173,549,612,039.31/456,574.92
  6. Step 6: Final answer
    x = 380,112.01

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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.