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Finding the Fourth Proportional to 559,802.94, 772,500.15 and 318,053.58

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Solution

The fourth proportional to 559,802.94, 772,500.15 and 318,053.58 is: 438,898.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,802.94 : 772,500.15 = 318,053.58 : x
  2. Step 2: Convert to fraction form
    559,802.94/772,500.15 = 318,053.58/x
  3. Step 3: Cross multiply
    559,802.94x = 772,500.15 × 318,053.58
  4. Step 4: Simplify right side
    559,802.94x = 245,696,438,258.04
  5. Step 5: Solve for x
    x = 245,696,438,258.04/559,802.94
  6. Step 6: Final answer
    x = 438,898.08

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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.