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Finding the Fourth Proportional to 619,358.40, 924,080.40 and 551,998.80

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Solution

The fourth proportional to 619,358.40, 924,080.40 and 551,998.80 is: 823,580.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,358.40 : 924,080.40 = 551,998.80 : x
  2. Step 2: Convert to fraction form
    619,358.40/924,080.40 = 551,998.80/x
  3. Step 3: Cross multiply
    619,358.40x = 924,080.40 × 551,998.80
  4. Step 4: Simplify right side
    619,358.40x = 510,091,271,903.52
  5. Step 5: Solve for x
    x = 510,091,271,903.52/619,358.40
  6. Step 6: Final answer
    x = 823,580.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.