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Finding the Fourth Proportional to 673,072.47, 928,803.51 and 386,592.62

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Solution

The fourth proportional to 673,072.47, 928,803.51 and 386,592.62 is: 533,476.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,072.47 : 928,803.51 = 386,592.62 : x
  2. Step 2: Convert to fraction form
    673,072.47/928,803.51 = 386,592.62/x
  3. Step 3: Cross multiply
    673,072.47x = 928,803.51 × 386,592.62
  4. Step 4: Simplify right side
    673,072.47x = 359,068,577,752.08
  5. Step 5: Solve for x
    x = 359,068,577,752.08/673,072.47
  6. Step 6: Final answer
    x = 533,476.85

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Double scale
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1.5x scale

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.