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Finding the Fourth Proportional to 620,363.40, 930,545.10 and 246,386.40

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Solution

The fourth proportional to 620,363.40, 930,545.10 and 246,386.40 is: 369,579.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,363.40 : 930,545.10 = 246,386.40 : x
  2. Step 2: Convert to fraction form
    620,363.40/930,545.10 = 246,386.40/x
  3. Step 3: Cross multiply
    620,363.40x = 930,545.10 × 246,386.40
  4. Step 4: Simplify right side
    620,363.40x = 229,273,657,226.64
  5. Step 5: Solve for x
    x = 229,273,657,226.64/620,363.40
  6. Step 6: Final answer
    x = 369,579.60

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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.