Home / 761,573.51-1,051,450.03-490,114.19

Finding the Fourth Proportional to 761,573.51, 1,051,450.03 and 490,114.19

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Solution

The fourth proportional to 761,573.51, 1,051,450.03 and 490,114.19 is: 676,665.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,573.51 : 1,051,450.03 = 490,114.19 : x
  2. Step 2: Convert to fraction form
    761,573.51/1,051,450.03 = 490,114.19/x
  3. Step 3: Cross multiply
    761,573.51x = 1,051,450.03 × 490,114.19
  4. Step 4: Simplify right side
    761,573.51x = 515,330,583,020.19
  5. Step 5: Solve for x
    x = 515,330,583,020.19/761,573.51
  6. Step 6: Final answer
    x = 676,665.58

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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.