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Finding the Fourth Proportional to 623,837.40, 934,200.90 and 499,421.40

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Solution

The fourth proportional to 623,837.40, 934,200.90 and 499,421.40 is: 747,887.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,837.40 : 934,200.90 = 499,421.40 : x
  2. Step 2: Convert to fraction form
    623,837.40/934,200.90 = 499,421.40/x
  3. Step 3: Cross multiply
    623,837.40x = 934,200.90 × 499,421.40
  4. Step 4: Simplify right side
    623,837.40x = 466,559,921,359.26
  5. Step 5: Solve for x
    x = 466,559,921,359.26/623,837.40
  6. Step 6: Final answer
    x = 747,887.06

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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.