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Finding the Fourth Proportional to 573,140.24, 790,897.26 and 318,476.24

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Solution

The fourth proportional to 573,140.24, 790,897.26 and 318,476.24 is: 439,477.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,140.24 : 790,897.26 = 318,476.24 : x
  2. Step 2: Convert to fraction form
    573,140.24/790,897.26 = 318,476.24/x
  3. Step 3: Cross multiply
    573,140.24x = 790,897.26 × 318,476.24
  4. Step 4: Simplify right side
    573,140.24x = 251,881,985,591.10
  5. Step 5: Solve for x
    x = 251,881,985,591.10/573,140.24
  6. Step 6: Final answer
    x = 439,477.06

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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.