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Finding the Fourth Proportional to 592,806.60, 889,209.90 and 412,403.40

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Solution

The fourth proportional to 592,806.60, 889,209.90 and 412,403.40 is: 618,605.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    592,806.60 : 889,209.90 = 412,403.40 : x
  2. Step 2: Convert to fraction form
    592,806.60/889,209.90 = 412,403.40/x
  3. Step 3: Cross multiply
    592,806.60x = 889,209.90 × 412,403.40
  4. Step 4: Simplify right side
    592,806.60x = 366,713,186,073.66
  5. Step 5: Solve for x
    x = 366,713,186,073.66/592,806.60
  6. Step 6: Final answer
    x = 618,605.10

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Double scale
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Similar ratio
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1.5x scale

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.