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Finding the Fourth Proportional to 852,630.84, 1,176,630.78 and 470,657.88

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Solution

The fourth proportional to 852,630.84, 1,176,630.78 and 470,657.88 is: 649,508.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    852,630.84 : 1,176,630.78 = 470,657.88 : x
  2. Step 2: Convert to fraction form
    852,630.84/1,176,630.78 = 470,657.88/x
  3. Step 3: Cross multiply
    852,630.84x = 1,176,630.78 × 470,657.88
  4. Step 4: Simplify right side
    852,630.84x = 553,790,548,457.55
  5. Step 5: Solve for x
    x = 553,790,548,457.55/852,630.84
  6. Step 6: Final answer
    x = 649,508.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.