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Finding the Fourth Proportional to 632,482.60, 873,085.68 and 428,812.48

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Solution

The fourth proportional to 632,482.60, 873,085.68 and 428,812.48 is: 591,937.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,482.60 : 873,085.68 = 428,812.48 : x
  2. Step 2: Convert to fraction form
    632,482.60/873,085.68 = 428,812.48/x
  3. Step 3: Cross multiply
    632,482.60x = 873,085.68 × 428,812.48
  4. Step 4: Simplify right side
    632,482.60x = 374,390,035,693.29
  5. Step 5: Solve for x
    x = 374,390,035,693.29/632,482.60
  6. Step 6: Final answer
    x = 591,937.29

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1.5x scale

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.