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Finding the Fourth Proportional to 511,527.60, 767,291.40 and 432,795.60

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Solution

The fourth proportional to 511,527.60, 767,291.40 and 432,795.60 is: 649,193.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,527.60 : 767,291.40 = 432,795.60 : x
  2. Step 2: Convert to fraction form
    511,527.60/767,291.40 = 432,795.60/x
  3. Step 3: Cross multiply
    511,527.60x = 767,291.40 × 432,795.60
  4. Step 4: Simplify right side
    511,527.60x = 332,080,341,837.84
  5. Step 5: Solve for x
    x = 332,080,341,837.84/511,527.60
  6. Step 6: Final answer
    x = 649,193.40

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Half scale
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Double scale
Find fourth proportional to 511,528.60, 767,292.90 and 432,796.60
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.