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Finding the Fourth Proportional to 578,503.17, 798,334.38 and 352,148.67

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Solution

The fourth proportional to 578,503.17, 798,334.38 and 352,148.67 is: 485,965.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,503.17 : 798,334.38 = 352,148.67 : x
  2. Step 2: Convert to fraction form
    578,503.17/798,334.38 = 352,148.67/x
  3. Step 3: Cross multiply
    578,503.17x = 798,334.38 × 352,148.67
  4. Step 4: Simplify right side
    578,503.17x = 281,132,390,132.28
  5. Step 5: Solve for x
    x = 281,132,390,132.28/578,503.17
  6. Step 6: Final answer
    x = 485,965.17

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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.