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Finding the Fourth Proportional to 570,718.15, 785,798.48 and 484,498.42

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Solution

The fourth proportional to 570,718.15, 785,798.48 and 484,498.42 is: 667,086.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,718.15 : 785,798.48 = 484,498.42 : x
  2. Step 2: Convert to fraction form
    570,718.15/785,798.48 = 484,498.42/x
  3. Step 3: Cross multiply
    570,718.15x = 785,798.48 × 484,498.42
  4. Step 4: Simplify right side
    570,718.15x = 380,718,121,245.15
  5. Step 5: Solve for x
    x = 380,718,121,245.15/570,718.15
  6. Step 6: Final answer
    x = 667,086.06

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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.