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Finding the Fourth Proportional to 569,715.60, 854,573.40 and 357,139.20

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Solution

The fourth proportional to 569,715.60, 854,573.40 and 357,139.20 is: 535,708.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,715.60 : 854,573.40 = 357,139.20 : x
  2. Step 2: Convert to fraction form
    569,715.60/854,573.40 = 357,139.20/x
  3. Step 3: Cross multiply
    569,715.60x = 854,573.40 × 357,139.20
  4. Step 4: Simplify right side
    569,715.60x = 305,201,660,417.28
  5. Step 5: Solve for x
    x = 305,201,660,417.28/569,715.60
  6. Step 6: Final answer
    x = 535,708.80

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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.