Home / 939,312.72-1,296,252.02-509,592.74

Finding the Fourth Proportional to 939,312.72, 1,296,252.02 and 509,592.74

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Solution

The fourth proportional to 939,312.72, 1,296,252.02 and 509,592.74 is: 703,238.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,312.72 : 1,296,252.02 = 509,592.74 : x
  2. Step 2: Convert to fraction form
    939,312.72/1,296,252.02 = 509,592.74/x
  3. Step 3: Cross multiply
    939,312.72x = 1,296,252.02 × 509,592.74
  4. Step 4: Simplify right side
    939,312.72x = 660,560,613,395.06
  5. Step 5: Solve for x
    x = 660,560,613,395.06/939,312.72
  6. Step 6: Final answer
    x = 703,238.23

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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.