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Finding the Fourth Proportional to 346,715.30, 520,072.95 and 294,356.90

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Solution

The fourth proportional to 346,715.30, 520,072.95 and 294,356.90 is: 441,535.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,715.30 : 520,072.95 = 294,356.90 : x
  2. Step 2: Convert to fraction form
    346,715.30/520,072.95 = 294,356.90/x
  3. Step 3: Cross multiply
    346,715.30x = 520,072.95 × 294,356.90
  4. Step 4: Simplify right side
    346,715.30x = 153,087,061,335.86
  5. Step 5: Solve for x
    x = 153,087,061,335.86/346,715.30
  6. Step 6: Final answer
    x = 441,535.35

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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.