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Finding the Fourth Proportional to 567,526.88, 783,216.06 and 312,877.46

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Solution

The fourth proportional to 567,526.88, 783,216.06 and 312,877.46 is: 431,786.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,526.88 : 783,216.06 = 312,877.46 : x
  2. Step 2: Convert to fraction form
    567,526.88/783,216.06 = 312,877.46/x
  3. Step 3: Cross multiply
    567,526.88x = 783,216.06 × 312,877.46
  4. Step 4: Simplify right side
    567,526.88x = 245,050,651,484.01
  5. Step 5: Solve for x
    x = 245,050,651,484.01/567,526.88
  6. Step 6: Final answer
    x = 431,786.86

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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.