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Finding the Fourth Proportional to 626,519.55, 864,597.35 and 340,039.63

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Solution

The fourth proportional to 626,519.55, 864,597.35 and 340,039.63 is: 469,254.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,519.55 : 864,597.35 = 340,039.63 : x
  2. Step 2: Convert to fraction form
    626,519.55/864,597.35 = 340,039.63/x
  3. Step 3: Cross multiply
    626,519.55x = 864,597.35 × 340,039.63
  4. Step 4: Simplify right side
    626,519.55x = 293,997,363,454.28
  5. Step 5: Solve for x
    x = 293,997,363,454.28/626,519.55
  6. Step 6: Final answer
    x = 469,254.89

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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.