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Finding the Fourth Proportional to 586,266.30, 879,399.45 and 383,312.70

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Solution

The fourth proportional to 586,266.30, 879,399.45 and 383,312.70 is: 574,969.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,266.30 : 879,399.45 = 383,312.70 : x
  2. Step 2: Convert to fraction form
    586,266.30/879,399.45 = 383,312.70/x
  3. Step 3: Cross multiply
    586,266.30x = 879,399.45 × 383,312.70
  4. Step 4: Simplify right side
    586,266.30x = 337,084,977,558.02
  5. Step 5: Solve for x
    x = 337,084,977,558.02/586,266.30
  6. Step 6: Final answer
    x = 574,969.05

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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.