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Finding the Fourth Proportional to 586,276.80, 879,415.20 and 550,847.40

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Solution

The fourth proportional to 586,276.80, 879,415.20 and 550,847.40 is: 826,271.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,276.80 : 879,415.20 = 550,847.40 : x
  2. Step 2: Convert to fraction form
    586,276.80/879,415.20 = 550,847.40/x
  3. Step 3: Cross multiply
    586,276.80x = 879,415.20 × 550,847.40
  4. Step 4: Simplify right side
    586,276.80x = 484,423,576,440.48
  5. Step 5: Solve for x
    x = 484,423,576,440.48/586,276.80
  6. Step 6: Final answer
    x = 826,271.10

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Similar ratio
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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.