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Finding the Fourth Proportional to 954,978, 1,317,894.57 and 525,269.40

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Solution

The fourth proportional to 954,978, 1,317,894.57 and 525,269.40 is: 724,885.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    954,978 : 1,317,894.57 = 525,269.40 : x
  2. Step 2: Convert to fraction form
    954,978/1,317,894.57 = 525,269.40/x
  3. Step 3: Cross multiply
    954,978x = 1,317,894.57 × 525,269.40
  4. Step 4: Simplify right side
    954,978x = 692,249,690,047.16
  5. Step 5: Solve for x
    x = 692,249,690,047.16/954,978
  6. Step 6: Final answer
    x = 724,885.48

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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.