Home / 717,171.57-989,733.14-407,095.98

Finding the Fourth Proportional to 717,171.57, 989,733.14 and 407,095.98

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Solution

The fourth proportional to 717,171.57, 989,733.14 and 407,095.98 is: 561,813.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,171.57 : 989,733.14 = 407,095.98 : x
  2. Step 2: Convert to fraction form
    717,171.57/989,733.14 = 407,095.98/x
  3. Step 3: Cross multiply
    717,171.57x = 989,733.14 × 407,095.98
  4. Step 4: Simplify right side
    717,171.57x = 402,916,382,566.78
  5. Step 5: Solve for x
    x = 402,916,382,566.78/717,171.57
  6. Step 6: Final answer
    x = 561,813.10

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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.