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Finding the Fourth Proportional to 644,484.60, 889,793.10 and 583,831.80

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Solution

The fourth proportional to 644,484.60, 889,793.10 and 583,831.80 is: 806,054.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,484.60 : 889,793.10 = 583,831.80 : x
  2. Step 2: Convert to fraction form
    644,484.60/889,793.10 = 583,831.80/x
  3. Step 3: Cross multiply
    644,484.60x = 889,793.10 × 583,831.80
  4. Step 4: Simplify right side
    644,484.60x = 519,489,507,200.58
  5. Step 5: Solve for x
    x = 519,489,507,200.58/644,484.60
  6. Step 6: Final answer
    x = 806,054.18

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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.