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Finding the Fourth Proportional to 529,503.48, 730,821.15 and 314,602.25

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Solution

The fourth proportional to 529,503.48, 730,821.15 and 314,602.25 is: 434,214.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,503.48 : 730,821.15 = 314,602.25 : x
  2. Step 2: Convert to fraction form
    529,503.48/730,821.15 = 314,602.25/x
  3. Step 3: Cross multiply
    529,503.48x = 730,821.15 × 314,602.25
  4. Step 4: Simplify right side
    529,503.48x = 229,917,974,483.48
  5. Step 5: Solve for x
    x = 229,917,974,483.48/529,503.48
  6. Step 6: Final answer
    x = 434,214.28

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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.