Home / 418,985.61-578,213.18-237,705.18

Finding the Fourth Proportional to 418,985.61, 578,213.18 and 237,705.18

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Solution

The fourth proportional to 418,985.61, 578,213.18 and 237,705.18 is: 328,040.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,985.61 : 578,213.18 = 237,705.18 : x
  2. Step 2: Convert to fraction form
    418,985.61/578,213.18 = 237,705.18/x
  3. Step 3: Cross multiply
    418,985.61x = 578,213.18 × 237,705.18
  4. Step 4: Simplify right side
    418,985.61x = 137,444,268,030.27
  5. Step 5: Solve for x
    x = 137,444,268,030.27/418,985.61
  6. Step 6: Final answer
    x = 328,040.55

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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.