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Finding the Fourth Proportional to 957.53, 1,436.70 and 470.59

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Solution

The fourth proportional to 957.53, 1,436.70 and 470.59 is: 706.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    957.53 : 1,436.70 = 470.59 : x
  2. Step 2: Convert to fraction form
    957.53/1,436.70 = 470.59/x
  3. Step 3: Cross multiply
    957.53x = 1,436.70 × 470.59
  4. Step 4: Simplify right side
    957.53x = 676,089.47
  5. Step 5: Solve for x
    x = 676,089.47/957.53
  6. Step 6: Final answer
    x = 706.08

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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.