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Finding the Fourth Proportional to 638,444.40, 957,666.60 and 584,530.80

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Solution

The fourth proportional to 638,444.40, 957,666.60 and 584,530.80 is: 876,796.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,444.40 : 957,666.60 = 584,530.80 : x
  2. Step 2: Convert to fraction form
    638,444.40/957,666.60 = 584,530.80/x
  3. Step 3: Cross multiply
    638,444.40x = 957,666.60 × 584,530.80
  4. Step 4: Simplify right side
    638,444.40x = 559,785,623,831.28
  5. Step 5: Solve for x
    x = 559,785,623,831.28/638,444.40
  6. Step 6: Final answer
    x = 876,796.20

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Similar ratio
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1.5x scale

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.