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Finding the Fourth Proportional to 713,551.70, 1,069,809.15 and 292,610.90

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Solution

The fourth proportional to 713,551.70, 1,069,809.15 and 292,610.90 is: 438,703.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,551.70 : 1,069,809.15 = 292,610.90 : x
  2. Step 2: Convert to fraction form
    713,551.70/1,069,809.15 = 292,610.90/x
  3. Step 3: Cross multiply
    713,551.70x = 1,069,809.15 × 292,610.90
  4. Step 4: Simplify right side
    713,551.70x = 313,037,818,209.74
  5. Step 5: Solve for x
    x = 313,037,818,209.74/713,551.70
  6. Step 6: Final answer
    x = 438,703.77

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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.