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Finding the Fourth Proportional to 586,909.20, 879,586.20 and 520,035.60

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Solution

The fourth proportional to 586,909.20, 879,586.20 and 520,035.60 is: 779,364.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,909.20 : 879,586.20 = 520,035.60 : x
  2. Step 2: Convert to fraction form
    586,909.20/879,586.20 = 520,035.60/x
  3. Step 3: Cross multiply
    586,909.20x = 879,586.20 × 520,035.60
  4. Step 4: Simplify right side
    586,909.20x = 457,416,137,268.72
  5. Step 5: Solve for x
    x = 457,416,137,268.72/586,909.20
  6. Step 6: Final answer
    x = 779,364.40

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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.