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Finding the Fourth Proportional to 562,295.43, 775,987.02 and 307,646.55

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Solution

The fourth proportional to 562,295.43, 775,987.02 and 307,646.55 is: 424,562.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,295.43 : 775,987.02 = 307,646.55 : x
  2. Step 2: Convert to fraction form
    562,295.43/775,987.02 = 307,646.55/x
  3. Step 3: Cross multiply
    562,295.43x = 775,987.02 × 307,646.55
  4. Step 4: Simplify right side
    562,295.43x = 238,729,729,547.78
  5. Step 5: Solve for x
    x = 238,729,729,547.78/562,295.43
  6. Step 6: Final answer
    x = 424,562.81

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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.