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Finding the Fourth Proportional to 553,688.40, 829,366.20 and 553,688.40

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Solution

The fourth proportional to 553,688.40, 829,366.20 and 553,688.40 is: 829,366.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,688.40 : 829,366.20 = 553,688.40 : x
  2. Step 2: Convert to fraction form
    553,688.40/829,366.20 = 553,688.40/x
  3. Step 3: Cross multiply
    553,688.40x = 829,366.20 × 553,688.40
  4. Step 4: Simplify right side
    553,688.40x = 459,210,444,292.08
  5. Step 5: Solve for x
    x = 459,210,444,292.08/553,688.40
  6. Step 6: Final answer
    x = 829,366.20

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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.