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Finding the Fourth Proportional to 410,312.40, 614,854.20 and 347,643.60

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Solution

The fourth proportional to 410,312.40, 614,854.20 and 347,643.60 is: 520,944.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,312.40 : 614,854.20 = 347,643.60 : x
  2. Step 2: Convert to fraction form
    410,312.40/614,854.20 = 347,643.60/x
  3. Step 3: Cross multiply
    410,312.40x = 614,854.20 × 347,643.60
  4. Step 4: Simplify right side
    410,312.40x = 213,750,127,563.12
  5. Step 5: Solve for x
    x = 213,750,127,563.12/410,312.40
  6. Step 6: Final answer
    x = 520,944.84

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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.