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Finding the Fourth Proportional to 319,300.40, 440,612.01 and 176,057.39

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Solution

The fourth proportional to 319,300.40, 440,612.01 and 176,057.39 is: 242,946.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,300.40 : 440,612.01 = 176,057.39 : x
  2. Step 2: Convert to fraction form
    319,300.40/440,612.01 = 176,057.39/x
  3. Step 3: Cross multiply
    319,300.40x = 440,612.01 × 176,057.39
  4. Step 4: Simplify right side
    319,300.40x = 77,572,998,280.19
  5. Step 5: Solve for x
    x = 77,572,998,280.19/319,300.40
  6. Step 6: Final answer
    x = 242,946.77

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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.