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Finding the Fourth Proportional to 575,606.20, 863,409.30 and 470,543.80

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Solution

The fourth proportional to 575,606.20, 863,409.30 and 470,543.80 is: 705,815.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,606.20 : 863,409.30 = 470,543.80 : x
  2. Step 2: Convert to fraction form
    575,606.20/863,409.30 = 470,543.80/x
  3. Step 3: Cross multiply
    575,606.20x = 863,409.30 × 470,543.80
  4. Step 4: Simplify right side
    575,606.20x = 406,271,892,977.34
  5. Step 5: Solve for x
    x = 406,271,892,977.34/575,606.20
  6. Step 6: Final answer
    x = 705,815.70

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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.