Home / 438,290.32-657,434.04-105,866.32

Finding the Fourth Proportional to 438,290.32, 657,434.04 and 105,866.32

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Solution

The fourth proportional to 438,290.32, 657,434.04 and 105,866.32 is: 158,799.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,290.32 : 657,434.04 = 105,866.32 : x
  2. Step 2: Convert to fraction form
    438,290.32/657,434.04 = 105,866.32/x
  3. Step 3: Cross multiply
    438,290.32x = 657,434.04 × 105,866.32
  4. Step 4: Simplify right side
    438,290.32x = 69,600,122,457.53
  5. Step 5: Solve for x
    x = 69,600,122,457.53/438,290.32
  6. Step 6: Final answer
    x = 158,799.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.