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Finding the Fourth Proportional to 545,533, 818,328.66 and 171,585.16

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Solution

The fourth proportional to 545,533, 818,328.66 and 171,585.16 is: 257,386.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,533 : 818,328.66 = 171,585.16 : x
  2. Step 2: Convert to fraction form
    545,533/818,328.66 = 171,585.16/x
  3. Step 3: Cross multiply
    545,533x = 818,328.66 × 171,585.16
  4. Step 4: Simplify right side
    545,533x = 140,413,054,058.69
  5. Step 5: Solve for x
    x = 140,413,054,058.69/545,533
  6. Step 6: Final answer
    x = 257,386.91

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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.