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Finding the Fourth Proportional to 346,429.92, 519,878.16 and 156,941.76

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Solution

The fourth proportional to 346,429.92, 519,878.16 and 156,941.76 is: 235,518.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,429.92 : 519,878.16 = 156,941.76 : x
  2. Step 2: Convert to fraction form
    346,429.92/519,878.16 = 156,941.76/x
  3. Step 3: Cross multiply
    346,429.92x = 519,878.16 × 156,941.76
  4. Step 4: Simplify right side
    346,429.92x = 81,590,593,415.96
  5. Step 5: Solve for x
    x = 81,590,593,415.96/346,429.92
  6. Step 6: Final answer
    x = 235,518.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.