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Finding the Fourth Proportional to 346,685.70, 520,028.55 and 293,541.60

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Solution

The fourth proportional to 346,685.70, 520,028.55 and 293,541.60 is: 440,312.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,685.70 : 520,028.55 = 293,541.60 : x
  2. Step 2: Convert to fraction form
    346,685.70/520,028.55 = 293,541.60/x
  3. Step 3: Cross multiply
    346,685.70x = 520,028.55 × 293,541.60
  4. Step 4: Simplify right side
    346,685.70x = 152,650,012,612.68
  5. Step 5: Solve for x
    x = 152,650,012,612.68/346,685.70
  6. Step 6: Final answer
    x = 440,312.40

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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.