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Finding the Fourth Proportional to 586,429.20, 879,643.80 and 514,112.40

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Solution

The fourth proportional to 586,429.20, 879,643.80 and 514,112.40 is: 771,168.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,429.20 : 879,643.80 = 514,112.40 : x
  2. Step 2: Convert to fraction form
    586,429.20/879,643.80 = 514,112.40/x
  3. Step 3: Cross multiply
    586,429.20x = 879,643.80 × 514,112.40
  4. Step 4: Simplify right side
    586,429.20x = 452,235,785,163.12
  5. Step 5: Solve for x
    x = 452,235,785,163.12/586,429.20
  6. Step 6: Final answer
    x = 771,168.60

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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.