Home / 669,124.40-1,003,686.60-615,210.80

Finding the Fourth Proportional to 669,124.40, 1,003,686.60 and 615,210.80

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Solution

The fourth proportional to 669,124.40, 1,003,686.60 and 615,210.80 is: 922,816.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,124.40 : 1,003,686.60 = 615,210.80 : x
  2. Step 2: Convert to fraction form
    669,124.40/1,003,686.60 = 615,210.80/x
  3. Step 3: Cross multiply
    669,124.40x = 1,003,686.60 × 615,210.80
  4. Step 4: Simplify right side
    669,124.40x = 617,478,836,135.28
  5. Step 5: Solve for x
    x = 617,478,836,135.28/669,124.40
  6. Step 6: Final answer
    x = 922,816.20

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Double scale
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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.