Home / 385,688.40-532,186.62-242,346.92

Finding the Fourth Proportional to 385,688.40, 532,186.62 and 242,346.92

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Solution

The fourth proportional to 385,688.40, 532,186.62 and 242,346.92 is: 334,398.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,688.40 : 532,186.62 = 242,346.92 : x
  2. Step 2: Convert to fraction form
    385,688.40/532,186.62 = 242,346.92/x
  3. Step 3: Cross multiply
    385,688.40x = 532,186.62 × 242,346.92
  4. Step 4: Simplify right side
    385,688.40x = 128,973,788,222.21
  5. Step 5: Solve for x
    x = 128,973,788,222.21/385,688.40
  6. Step 6: Final answer
    x = 334,398.93

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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.