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Finding the Fourth Proportional to 685,411, 944,177.11 and 583,108.81

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Solution

The fourth proportional to 685,411, 944,177.11 and 583,108.81 is: 803,252.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,411 : 944,177.11 = 583,108.81 : x
  2. Step 2: Convert to fraction form
    685,411/944,177.11 = 583,108.81/x
  3. Step 3: Cross multiply
    685,411x = 944,177.11 × 583,108.81
  4. Step 4: Simplify right side
    685,411x = 550,557,991,041.34
  5. Step 5: Solve for x
    x = 550,557,991,041.34/685,411
  6. Step 6: Final answer
    x = 803,252.34

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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.