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Finding the Fourth Proportional to 692,095.68, 954,911.58 and 405,461.76

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Solution

The fourth proportional to 692,095.68, 954,911.58 and 405,461.76 is: 559,431.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,095.68 : 954,911.58 = 405,461.76 : x
  2. Step 2: Convert to fraction form
    692,095.68/954,911.58 = 405,461.76/x
  3. Step 3: Cross multiply
    692,095.68x = 954,911.58 × 405,461.76
  4. Step 4: Simplify right side
    692,095.68x = 387,180,129,871.18
  5. Step 5: Solve for x
    x = 387,180,129,871.18/692,095.68
  6. Step 6: Final answer
    x = 559,431.51

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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.