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Finding the Fourth Proportional to 553,637.20, 829,143.60 and 553,637.20

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Solution

The fourth proportional to 553,637.20, 829,143.60 and 553,637.20 is: 829,143.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,637.20 : 829,143.60 = 553,637.20 : x
  2. Step 2: Convert to fraction form
    553,637.20/829,143.60 = 553,637.20/x
  3. Step 3: Cross multiply
    553,637.20x = 829,143.60 × 553,637.20
  4. Step 4: Simplify right side
    553,637.20x = 459,044,741,101.92
  5. Step 5: Solve for x
    x = 459,044,741,101.92/553,637.20
  6. Step 6: Final answer
    x = 829,143.60

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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.