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Finding the Fourth Proportional to 692,994.85, 956,322.79 and 387,075.55

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Solution

The fourth proportional to 692,994.85, 956,322.79 and 387,075.55 is: 534,158.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,994.85 : 956,322.79 = 387,075.55 : x
  2. Step 2: Convert to fraction form
    692,994.85/956,322.79 = 387,075.55/x
  3. Step 3: Cross multiply
    692,994.85x = 956,322.79 × 387,075.55
  4. Step 4: Simplify right side
    692,994.85x = 370,169,169,916.79
  5. Step 5: Solve for x
    x = 370,169,169,916.79/692,994.85
  6. Step 6: Final answer
    x = 534,158.62

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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.