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Finding the Fourth Proportional to 553,315.70, 829,973.55 and 174,284.30

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Solution

The fourth proportional to 553,315.70, 829,973.55 and 174,284.30 is: 261,426.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,315.70 : 829,973.55 = 174,284.30 : x
  2. Step 2: Convert to fraction form
    553,315.70/829,973.55 = 174,284.30/x
  3. Step 3: Cross multiply
    553,315.70x = 829,973.55 × 174,284.30
  4. Step 4: Simplify right side
    553,315.70x = 144,651,359,180.27
  5. Step 5: Solve for x
    x = 144,651,359,180.27/553,315.70
  6. Step 6: Final answer
    x = 261,426.45

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Double scale
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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.