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Finding the Fourth Proportional to 562,070.22, 775,675.38 and 307,421.42

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Solution

The fourth proportional to 562,070.22, 775,675.38 and 307,421.42 is: 424,251.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,070.22 : 775,675.38 = 307,421.42 : x
  2. Step 2: Convert to fraction form
    562,070.22/775,675.38 = 307,421.42/x
  3. Step 3: Cross multiply
    562,070.22x = 775,675.38 × 307,421.42
  4. Step 4: Simplify right side
    562,070.22x = 238,459,222,900.26
  5. Step 5: Solve for x
    x = 238,459,222,900.26/562,070.22
  6. Step 6: Final answer
    x = 424,251.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.