Home / 917,897.32-1,266,689.10-504,440.92

Finding the Fourth Proportional to 917,897.32, 1,266,689.10 and 504,440.92

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Solution

The fourth proportional to 917,897.32, 1,266,689.10 and 504,440.92 is: 696,123.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,897.32 : 1,266,689.10 = 504,440.92 : x
  2. Step 2: Convert to fraction form
    917,897.32/1,266,689.10 = 504,440.92/x
  3. Step 3: Cross multiply
    917,897.32x = 1,266,689.10 × 504,440.92
  4. Step 4: Simplify right side
    917,897.32x = 638,969,814,957.97
  5. Step 5: Solve for x
    x = 638,969,814,957.97/917,897.32
  6. Step 6: Final answer
    x = 696,123.41

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Double scale
Find fourth proportional to 917,898.32, 1,266,690.48 and 504,441.92
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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.