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Finding the Fourth Proportional to 573,130.35, 790,927.05 and 315,035.48

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Solution

The fourth proportional to 573,130.35, 790,927.05 and 315,035.48 is: 434,752.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,130.35 : 790,927.05 = 315,035.48 : x
  2. Step 2: Convert to fraction form
    573,130.35/790,927.05 = 315,035.48/x
  3. Step 3: Cross multiply
    573,130.35x = 790,927.05 × 315,035.48
  4. Step 4: Simplify right side
    573,130.35x = 249,170,078,887.10
  5. Step 5: Solve for x
    x = 249,170,078,887.10/573,130.35
  6. Step 6: Final answer
    x = 434,752.90

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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.