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Finding the Fourth Proportional to 620,729.40, 931,094.10 and 463,265.40

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Solution

The fourth proportional to 620,729.40, 931,094.10 and 463,265.40 is: 694,898.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,729.40 : 931,094.10 = 463,265.40 : x
  2. Step 2: Convert to fraction form
    620,729.40/931,094.10 = 463,265.40/x
  3. Step 3: Cross multiply
    620,729.40x = 931,094.10 × 463,265.40
  4. Step 4: Simplify right side
    620,729.40x = 431,343,680,674.14
  5. Step 5: Solve for x
    x = 431,343,680,674.14/620,729.40
  6. Step 6: Final answer
    x = 694,898.10

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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.