Home / 917,683.79-1,266,605.78-509,925.53

Finding the Fourth Proportional to 917,683.79, 1,266,605.78 and 509,925.53

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Solution

The fourth proportional to 917,683.79, 1,266,605.78 and 509,925.53 is: 703,809.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,683.79 : 1,266,605.78 = 509,925.53 : x
  2. Step 2: Convert to fraction form
    917,683.79/1,266,605.78 = 509,925.53/x
  3. Step 3: Cross multiply
    917,683.79x = 1,266,605.78 × 509,925.53
  4. Step 4: Simplify right side
    917,683.79x = 645,874,624,284.45
  5. Step 5: Solve for x
    x = 645,874,624,284.45/917,683.79
  6. Step 6: Final answer
    x = 703,809.56

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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.