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Finding the Fourth Proportional to 581,626.22, 803,256.08 and 518,226.30

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Solution

The fourth proportional to 581,626.22, 803,256.08 and 518,226.30 is: 715,697.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,626.22 : 803,256.08 = 518,226.30 : x
  2. Step 2: Convert to fraction form
    581,626.22/803,256.08 = 518,226.30/x
  3. Step 3: Cross multiply
    581,626.22x = 803,256.08 × 518,226.30
  4. Step 4: Simplify right side
    581,626.22x = 416,268,423,699.77
  5. Step 5: Solve for x
    x = 416,268,423,699.77/581,626.22
  6. Step 6: Final answer
    x = 715,697.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.