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Finding the Fourth Proportional to 509,303.55, 702,357.12 and 334,565.25

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Solution

The fourth proportional to 509,303.55, 702,357.12 and 334,565.25 is: 461,383.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,303.55 : 702,357.12 = 334,565.25 : x
  2. Step 2: Convert to fraction form
    509,303.55/702,357.12 = 334,565.25/x
  3. Step 3: Cross multiply
    509,303.55x = 702,357.12 × 334,565.25
  4. Step 4: Simplify right side
    509,303.55x = 234,984,285,442.08
  5. Step 5: Solve for x
    x = 234,984,285,442.08/509,303.55
  6. Step 6: Final answer
    x = 461,383.56

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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.