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Finding the Fourth Proportional to 529,612.63, 730,971.54 and 314,711.12

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Solution

The fourth proportional to 529,612.63, 730,971.54 and 314,711.12 is: 434,364.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,612.63 : 730,971.54 = 314,711.12 : x
  2. Step 2: Convert to fraction form
    529,612.63/730,971.54 = 314,711.12/x
  3. Step 3: Cross multiply
    529,612.63x = 730,971.54 × 314,711.12
  4. Step 4: Simplify right side
    529,612.63x = 230,044,873,868.95
  5. Step 5: Solve for x
    x = 230,044,873,868.95/529,612.63
  6. Step 6: Final answer
    x = 434,364.41

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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.