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Finding the Fourth Proportional to 567,985.68, 783,822.80 and 313,336.80

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Solution

The fourth proportional to 567,985.68, 783,822.80 and 313,336.80 is: 432,406.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,985.68 : 783,822.80 = 313,336.80 : x
  2. Step 2: Convert to fraction form
    567,985.68/783,822.80 = 313,336.80/x
  3. Step 3: Cross multiply
    567,985.68x = 783,822.80 × 313,336.80
  4. Step 4: Simplify right side
    567,985.68x = 245,600,527,919.04
  5. Step 5: Solve for x
    x = 245,600,527,919.04/567,985.68
  6. Step 6: Final answer
    x = 432,406.20

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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.