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Finding the Fourth Proportional to 626,520.83, 864,590.36 and 340,038.41

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Solution

The fourth proportional to 626,520.83, 864,590.36 and 340,038.41 is: 469,248.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,520.83 : 864,590.36 = 340,038.41 : x
  2. Step 2: Convert to fraction form
    626,520.83/864,590.36 = 340,038.41/x
  3. Step 3: Cross multiply
    626,520.83x = 864,590.36 × 340,038.41
  4. Step 4: Simplify right side
    626,520.83x = 293,993,925,292.58
  5. Step 5: Solve for x
    x = 293,993,925,292.58/626,520.83
  6. Step 6: Final answer
    x = 469,248.45

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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.