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Finding the Fourth Proportional to 455,432.40, 683,148.60 and 174,956.40

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Solution

The fourth proportional to 455,432.40, 683,148.60 and 174,956.40 is: 262,434.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,432.40 : 683,148.60 = 174,956.40 : x
  2. Step 2: Convert to fraction form
    455,432.40/683,148.60 = 174,956.40/x
  3. Step 3: Cross multiply
    455,432.40x = 683,148.60 × 174,956.40
  4. Step 4: Simplify right side
    455,432.40x = 119,521,219,721.04
  5. Step 5: Solve for x
    x = 119,521,219,721.04/455,432.40
  6. Step 6: Final answer
    x = 262,434.60

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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.