Home / 738,109.51-1,018,666.37-451,818.79

Finding the Fourth Proportional to 738,109.51, 1,018,666.37 and 451,818.79

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Solution

The fourth proportional to 738,109.51, 1,018,666.37 and 451,818.79 is: 623,555.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,109.51 : 1,018,666.37 = 451,818.79 : x
  2. Step 2: Convert to fraction form
    738,109.51/1,018,666.37 = 451,818.79/x
  3. Step 3: Cross multiply
    738,109.51x = 1,018,666.37 × 451,818.79
  4. Step 4: Simplify right side
    738,109.51x = 460,252,606,707.09
  5. Step 5: Solve for x
    x = 460,252,606,707.09/738,109.51
  6. Step 6: Final answer
    x = 623,555.99

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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.