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Finding the Fourth Proportional to 626,477.84, 864,545.88 and 340,000.40

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Solution

The fourth proportional to 626,477.84, 864,545.88 and 340,000.40 is: 469,204.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,477.84 : 864,545.88 = 340,000.40 : x
  2. Step 2: Convert to fraction form
    626,477.84/864,545.88 = 340,000.40/x
  3. Step 3: Cross multiply
    626,477.84x = 864,545.88 × 340,000.40
  4. Step 4: Simplify right side
    626,477.84x = 293,945,945,018.35
  5. Step 5: Solve for x
    x = 293,945,945,018.35/626,477.84
  6. Step 6: Final answer
    x = 469,204.06

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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.