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Finding the Fourth Proportional to 623,307.90, 935,998.65 and 343,026.30

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Solution

The fourth proportional to 623,307.90, 935,998.65 and 343,026.30 is: 515,110.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,307.90 : 935,998.65 = 343,026.30 : x
  2. Step 2: Convert to fraction form
    623,307.90/935,998.65 = 343,026.30/x
  3. Step 3: Cross multiply
    623,307.90x = 935,998.65 × 343,026.30
  4. Step 4: Simplify right side
    623,307.90x = 321,072,153,714.50
  5. Step 5: Solve for x
    x = 321,072,153,714.50/623,307.90
  6. Step 6: Final answer
    x = 515,110.03

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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.