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Finding the Fourth Proportional to 528,970.60, 793,572.54 and 173,970.28

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Solution

The fourth proportional to 528,970.60, 793,572.54 and 173,970.28 is: 260,993.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,970.60 : 793,572.54 = 173,970.28 : x
  2. Step 2: Convert to fraction form
    528,970.60/793,572.54 = 173,970.28/x
  3. Step 3: Cross multiply
    528,970.60x = 793,572.54 × 173,970.28
  4. Step 4: Simplify right side
    528,970.60x = 138,058,036,984.11
  5. Step 5: Solve for x
    x = 138,058,036,984.11/528,970.60
  6. Step 6: Final answer
    x = 260,993.78

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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.