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Finding the Fourth Proportional to 591,279.76, 887,140 and 354,792.16

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Solution

The fourth proportional to 591,279.76, 887,140 and 354,792.16 is: 532,320.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,279.76 : 887,140 = 354,792.16 : x
  2. Step 2: Convert to fraction form
    591,279.76/887,140 = 354,792.16/x
  3. Step 3: Cross multiply
    591,279.76x = 887,140 × 354,792.16
  4. Step 4: Simplify right side
    591,279.76x = 314,750,316,822.40
  5. Step 5: Solve for x
    x = 314,750,316,822.40/591,279.76
  6. Step 6: Final answer
    x = 532,320.47

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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.