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Finding the Fourth Proportional to 570,208.38, 786,695.31 and 328,484.72

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Solution

The fourth proportional to 570,208.38, 786,695.31 and 328,484.72 is: 453,198.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,208.38 : 786,695.31 = 328,484.72 : x
  2. Step 2: Convert to fraction form
    570,208.38/786,695.31 = 328,484.72/x
  3. Step 3: Cross multiply
    570,208.38x = 786,695.31 × 328,484.72
  4. Step 4: Simplify right side
    570,208.38x = 258,417,384,697.19
  5. Step 5: Solve for x
    x = 258,417,384,697.19/570,208.38
  6. Step 6: Final answer
    x = 453,198.15

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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.