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Finding the Fourth Proportional to 586,057.48, 808,884.95 and 356,688.64

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Solution

The fourth proportional to 586,057.48, 808,884.95 and 356,688.64 is: 492,306.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,057.48 : 808,884.95 = 356,688.64 : x
  2. Step 2: Convert to fraction form
    586,057.48/808,884.95 = 356,688.64/x
  3. Step 3: Cross multiply
    586,057.48x = 808,884.95 × 356,688.64
  4. Step 4: Simplify right side
    586,057.48x = 288,520,071,601.48
  5. Step 5: Solve for x
    x = 288,520,071,601.48/586,057.48
  6. Step 6: Final answer
    x = 492,306.78

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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.