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Finding the Fourth Proportional to 836,701.80, 1,154,657.40 and 454,728.60

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Solution

The fourth proportional to 836,701.80, 1,154,657.40 and 454,728.60 is: 627,530.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    836,701.80 : 1,154,657.40 = 454,728.60 : x
  2. Step 2: Convert to fraction form
    836,701.80/1,154,657.40 = 454,728.60/x
  3. Step 3: Cross multiply
    836,701.80x = 1,154,657.40 × 454,728.60
  4. Step 4: Simplify right side
    836,701.80x = 525,055,742,981.64
  5. Step 5: Solve for x
    x = 525,055,742,981.64/836,701.80
  6. Step 6: Final answer
    x = 627,530.31

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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.