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Finding the Fourth Proportional to 592,804.60, 889,206.90 and 412,401.40

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Solution

The fourth proportional to 592,804.60, 889,206.90 and 412,401.40 is: 618,602.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    592,804.60 : 889,206.90 = 412,401.40 : x
  2. Step 2: Convert to fraction form
    592,804.60/889,206.90 = 412,401.40/x
  3. Step 3: Cross multiply
    592,804.60x = 889,206.90 × 412,401.40
  4. Step 4: Simplify right side
    592,804.60x = 366,710,170,449.66
  5. Step 5: Solve for x
    x = 366,710,170,449.66/592,804.60
  6. Step 6: Final answer
    x = 618,602.10

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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.