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Finding the Fourth Proportional to 358,462.40, 537,693.60 and 340,966.40

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Solution

The fourth proportional to 358,462.40, 537,693.60 and 340,966.40 is: 511,449.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,462.40 : 537,693.60 = 340,966.40 : x
  2. Step 2: Convert to fraction form
    358,462.40/537,693.60 = 340,966.40/x
  3. Step 3: Cross multiply
    358,462.40x = 537,693.60 × 340,966.40
  4. Step 4: Simplify right side
    358,462.40x = 183,335,451,095.04
  5. Step 5: Solve for x
    x = 183,335,451,095.04/358,462.40
  6. Step 6: Final answer
    x = 511,449.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.