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Finding the Fourth Proportional to 649,658.77, 896,534.78 and 359,255.23

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Solution

The fourth proportional to 649,658.77, 896,534.78 and 359,255.23 is: 495,775.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,658.77 : 896,534.78 = 359,255.23 : x
  2. Step 2: Convert to fraction form
    649,658.77/896,534.78 = 359,255.23/x
  3. Step 3: Cross multiply
    649,658.77x = 896,534.78 × 359,255.23
  4. Step 4: Simplify right side
    649,658.77x = 322,084,804,554.29
  5. Step 5: Solve for x
    x = 322,084,804,554.29/649,658.77
  6. Step 6: Final answer
    x = 495,775.35

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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.