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Finding the Fourth Proportional to 971,562.40, 1,457,084.40 and 340,410.40

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Solution

The fourth proportional to 971,562.40, 1,457,084.40 and 340,410.40 is: 510,524.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    971,562.40 : 1,457,084.40 = 340,410.40 : x
  2. Step 2: Convert to fraction form
    971,562.40/1,457,084.40 = 340,410.40/x
  3. Step 3: Cross multiply
    971,562.40x = 1,457,084.40 × 340,410.40
  4. Step 4: Simplify right side
    971,562.40x = 496,006,683,437.76
  5. Step 5: Solve for x
    x = 496,006,683,437.76/971,562.40
  6. Step 6: Final answer
    x = 510,524.78

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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.