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Finding the Fourth Proportional to 346,725.80, 520,088.70 and 294,367.40

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Solution

The fourth proportional to 346,725.80, 520,088.70 and 294,367.40 is: 441,551.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,725.80 : 520,088.70 = 294,367.40 : x
  2. Step 2: Convert to fraction form
    346,725.80/520,088.70 = 294,367.40/x
  3. Step 3: Cross multiply
    346,725.80x = 520,088.70 × 294,367.40
  4. Step 4: Simplify right side
    346,725.80x = 153,097,158,388.38
  5. Step 5: Solve for x
    x = 153,097,158,388.38/346,725.80
  6. Step 6: Final answer
    x = 441,551.10

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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.