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Finding the Fourth Proportional to 562,679.75, 776,498.09 and 308,030.93

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Solution

The fourth proportional to 562,679.75, 776,498.09 and 308,030.93 is: 425,082.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,679.75 : 776,498.09 = 308,030.93 : x
  2. Step 2: Convert to fraction form
    562,679.75/776,498.09 = 308,030.93/x
  3. Step 3: Cross multiply
    562,679.75x = 776,498.09 × 308,030.93
  4. Step 4: Simplify right side
    562,679.75x = 239,185,428,805.92
  5. Step 5: Solve for x
    x = 239,185,428,805.92/562,679.75
  6. Step 6: Final answer
    x = 425,082.70

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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.