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Finding the Fourth Proportional to 358,466.40, 537,699.60 and 109,148.40

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Solution

The fourth proportional to 358,466.40, 537,699.60 and 109,148.40 is: 163,722.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,466.40 : 537,699.60 = 109,148.40 : x
  2. Step 2: Convert to fraction form
    358,466.40/537,699.60 = 109,148.40/x
  3. Step 3: Cross multiply
    358,466.40x = 537,699.60 × 109,148.40
  4. Step 4: Simplify right side
    358,466.40x = 58,689,051,020.64
  5. Step 5: Solve for x
    x = 58,689,051,020.64/358,466.40
  6. Step 6: Final answer
    x = 163,722.60

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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.