Home / 450,258.66-621,355.10-243,527.28

Finding the Fourth Proportional to 450,258.66, 621,355.10 and 243,527.28

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Solution

The fourth proportional to 450,258.66, 621,355.10 and 243,527.28 is: 336,066.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,258.66 : 621,355.10 = 243,527.28 : x
  2. Step 2: Convert to fraction form
    450,258.66/621,355.10 = 243,527.28/x
  3. Step 3: Cross multiply
    450,258.66x = 621,355.10 × 243,527.28
  4. Step 4: Simplify right side
    450,258.66x = 151,316,916,199.49
  5. Step 5: Solve for x
    x = 151,316,916,199.49/450,258.66
  6. Step 6: Final answer
    x = 336,066.64

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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.