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Finding the Fourth Proportional to 545,615.40, 817,664.49 and 474,392.10

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Solution

The fourth proportional to 545,615.40, 817,664.49 and 474,392.10 is: 710,928.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,615.40 : 817,664.49 = 474,392.10 : x
  2. Step 2: Convert to fraction form
    545,615.40/817,664.49 = 474,392.10/x
  3. Step 3: Cross multiply
    545,615.40x = 817,664.49 × 474,392.10
  4. Step 4: Simplify right side
    545,615.40x = 387,893,574,506.53
  5. Step 5: Solve for x
    x = 387,893,574,506.53/545,615.40
  6. Step 6: Final answer
    x = 710,928.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.