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Finding the Fourth Proportional to 586,076.50, 808,790.43 and 317,804.50

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Solution

The fourth proportional to 586,076.50, 808,790.43 and 317,804.50 is: 438,572.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,076.50 : 808,790.43 = 317,804.50 : x
  2. Step 2: Convert to fraction form
    586,076.50/808,790.43 = 317,804.50/x
  3. Step 3: Cross multiply
    586,076.50x = 808,790.43 × 317,804.50
  4. Step 4: Simplify right side
    586,076.50x = 257,037,238,210.94
  5. Step 5: Solve for x
    x = 257,037,238,210.94/586,076.50
  6. Step 6: Final answer
    x = 438,572.85

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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.