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Finding the Fourth Proportional to 570,802.69, 788,237.13 and 427,313.62

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Solution

The fourth proportional to 570,802.69, 788,237.13 and 427,313.62 is: 590,089.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,802.69 : 788,237.13 = 427,313.62 : x
  2. Step 2: Convert to fraction form
    570,802.69/788,237.13 = 427,313.62/x
  3. Step 3: Cross multiply
    570,802.69x = 788,237.13 × 427,313.62
  4. Step 4: Simplify right side
    570,802.69x = 336,824,461,438.71
  5. Step 5: Solve for x
    x = 336,824,461,438.71/570,802.69
  6. Step 6: Final answer
    x = 590,089.13

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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.