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Finding the Fourth Proportional to 623,386.86, 860,230.71 and 351,464.46

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Solution

The fourth proportional to 623,386.86, 860,230.71 and 351,464.46 is: 484,996.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,386.86 : 860,230.71 = 351,464.46 : x
  2. Step 2: Convert to fraction form
    623,386.86/860,230.71 = 351,464.46/x
  3. Step 3: Cross multiply
    623,386.86x = 860,230.71 × 351,464.46
  4. Step 4: Simplify right side
    623,386.86x = 302,340,521,965.57
  5. Step 5: Solve for x
    x = 302,340,521,965.57/623,386.86
  6. Step 6: Final answer
    x = 484,996.62

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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.