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Finding the Fourth Proportional to 292,424.16, 403,547.04 and 158,288.16

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Solution

The fourth proportional to 292,424.16, 403,547.04 and 158,288.16 is: 218,438.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,424.16 : 403,547.04 = 158,288.16 : x
  2. Step 2: Convert to fraction form
    292,424.16/403,547.04 = 158,288.16/x
  3. Step 3: Cross multiply
    292,424.16x = 403,547.04 × 158,288.16
  4. Step 4: Simplify right side
    292,424.16x = 63,876,718,435.05
  5. Step 5: Solve for x
    x = 63,876,718,435.05/292,424.16
  6. Step 6: Final answer
    x = 218,438.58

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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.