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Finding the Fourth Proportional to 581,562.94, 802,299.58 and 387,783.80

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Solution

The fourth proportional to 581,562.94, 802,299.58 and 387,783.80 is: 534,970.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,562.94 : 802,299.58 = 387,783.80 : x
  2. Step 2: Convert to fraction form
    581,562.94/802,299.58 = 387,783.80/x
  3. Step 3: Cross multiply
    581,562.94x = 802,299.58 × 387,783.80
  4. Step 4: Simplify right side
    581,562.94x = 311,118,784,592.69
  5. Step 5: Solve for x
    x = 311,118,784,592.69/581,562.94
  6. Step 6: Final answer
    x = 534,970.10

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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.