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Finding the Fourth Proportional to 664,522.80, 996,784.20 and 465,068.40

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Solution

The fourth proportional to 664,522.80, 996,784.20 and 465,068.40 is: 697,602.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,522.80 : 996,784.20 = 465,068.40 : x
  2. Step 2: Convert to fraction form
    664,522.80/996,784.20 = 465,068.40/x
  3. Step 3: Cross multiply
    664,522.80x = 996,784.20 × 465,068.40
  4. Step 4: Simplify right side
    664,522.80x = 463,572,833,039.28
  5. Step 5: Solve for x
    x = 463,572,833,039.28/664,522.80
  6. Step 6: Final answer
    x = 697,602.60

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Similar ratio
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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.