Home / 839,445.84-1,158,401.40-457,464.40

Finding the Fourth Proportional to 839,445.84, 1,158,401.40 and 457,464.40

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Solution

The fourth proportional to 839,445.84, 1,158,401.40 and 457,464.40 is: 631,282.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,445.84 : 1,158,401.40 = 457,464.40 : x
  2. Step 2: Convert to fraction form
    839,445.84/1,158,401.40 = 457,464.40/x
  3. Step 3: Cross multiply
    839,445.84x = 1,158,401.40 × 457,464.40
  4. Step 4: Simplify right side
    839,445.84x = 529,927,401,410.16
  5. Step 5: Solve for x
    x = 529,927,401,410.16/839,445.84
  6. Step 6: Final answer
    x = 631,282.42

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Double scale
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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.