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Finding the Fourth Proportional to 563,974.50, 778,470.94 and 504,187.40

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Solution

The fourth proportional to 563,974.50, 778,470.94 and 504,187.40 is: 695,945.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,974.50 : 778,470.94 = 504,187.40 : x
  2. Step 2: Convert to fraction form
    563,974.50/778,470.94 = 504,187.40/x
  3. Step 3: Cross multiply
    563,974.50x = 778,470.94 × 504,187.40
  4. Step 4: Simplify right side
    563,974.50x = 392,495,239,214.16
  5. Step 5: Solve for x
    x = 392,495,239,214.16/563,974.50
  6. Step 6: Final answer
    x = 695,945.01

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Double scale
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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.