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Finding the Fourth Proportional to 676,655.76, 933,815.32 and 374,830.32

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Solution

The fourth proportional to 676,655.76, 933,815.32 and 374,830.32 is: 517,282.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,655.76 : 933,815.32 = 374,830.32 : x
  2. Step 2: Convert to fraction form
    676,655.76/933,815.32 = 374,830.32/x
  3. Step 3: Cross multiply
    676,655.76x = 933,815.32 × 374,830.32
  4. Step 4: Simplify right side
    676,655.76x = 350,022,295,216.50
  5. Step 5: Solve for x
    x = 350,022,295,216.50/676,655.76
  6. Step 6: Final answer
    x = 517,282.67

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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.