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Finding the Fourth Proportional to 692,995.17, 956,323.19 and 387,075.98

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Solution

The fourth proportional to 692,995.17, 956,323.19 and 387,075.98 is: 534,159.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,995.17 : 956,323.19 = 387,075.98 : x
  2. Step 2: Convert to fraction form
    692,995.17/956,323.19 = 387,075.98/x
  3. Step 3: Cross multiply
    692,995.17x = 956,323.19 × 387,075.98
  4. Step 4: Simplify right side
    692,995.17x = 370,169,729,248.98
  5. Step 5: Solve for x
    x = 370,169,729,248.98/692,995.17
  6. Step 6: Final answer
    x = 534,159.18

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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.