Home / 839,123.34-1,158,130.61-495,044.65

Finding the Fourth Proportional to 839,123.34, 1,158,130.61 and 495,044.65

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Solution

The fourth proportional to 839,123.34, 1,158,130.61 and 495,044.65 is: 683,244.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,123.34 : 1,158,130.61 = 495,044.65 : x
  2. Step 2: Convert to fraction form
    839,123.34/1,158,130.61 = 495,044.65/x
  3. Step 3: Cross multiply
    839,123.34x = 1,158,130.61 × 495,044.65
  4. Step 4: Simplify right side
    839,123.34x = 573,326,362,481.74
  5. Step 5: Solve for x
    x = 573,326,362,481.74/839,123.34
  6. Step 6: Final answer
    x = 683,244.45

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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.