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Finding the Fourth Proportional to 553,712.40, 829,402.20 and 553,712.40

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Solution

The fourth proportional to 553,712.40, 829,402.20 and 553,712.40 is: 829,402.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,712.40 : 829,402.20 = 553,712.40 : x
  2. Step 2: Convert to fraction form
    553,712.40/829,402.20 = 553,712.40/x
  3. Step 3: Cross multiply
    553,712.40x = 829,402.20 × 553,712.40
  4. Step 4: Simplify right side
    553,712.40x = 459,250,282,727.28
  5. Step 5: Solve for x
    x = 459,250,282,727.28/553,712.40
  6. Step 6: Final answer
    x = 829,402.20

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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.