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Finding the Fourth Proportional to 553,312.70, 828,656.85 and 553,312.70

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Solution

The fourth proportional to 553,312.70, 828,656.85 and 553,312.70 is: 828,656.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,312.70 : 828,656.85 = 553,312.70 : x
  2. Step 2: Convert to fraction form
    553,312.70/828,656.85 = 553,312.70/x
  3. Step 3: Cross multiply
    553,312.70x = 828,656.85 × 553,312.70
  4. Step 4: Simplify right side
    553,312.70x = 458,506,359,047.00
  5. Step 5: Solve for x
    x = 458,506,359,047.00/553,312.70
  6. Step 6: Final answer
    x = 828,656.85

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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.