Home / 839,307.42-1,158,242.49-457,333.29

Finding the Fourth Proportional to 839,307.42, 1,158,242.49 and 457,333.29

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Solution

The fourth proportional to 839,307.42, 1,158,242.49 and 457,333.29 is: 631,118.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,307.42 : 1,158,242.49 = 457,333.29 : x
  2. Step 2: Convert to fraction form
    839,307.42/1,158,242.49 = 457,333.29/x
  3. Step 3: Cross multiply
    839,307.42x = 1,158,242.49 × 457,333.29
  4. Step 4: Simplify right side
    839,307.42x = 529,702,848,569.49
  5. Step 5: Solve for x
    x = 529,702,848,569.49/839,307.42
  6. Step 6: Final answer
    x = 631,118.99

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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.