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Finding the Fourth Proportional to 692,424.46, 955,705.17 and 406,036.81

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Solution

The fourth proportional to 692,424.46, 955,705.17 and 406,036.81 is: 560,424.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,424.46 : 955,705.17 = 406,036.81 : x
  2. Step 2: Convert to fraction form
    692,424.46/955,705.17 = 406,036.81/x
  3. Step 3: Cross multiply
    692,424.46x = 955,705.17 × 406,036.81
  4. Step 4: Simplify right side
    692,424.46x = 388,051,478,347.77
  5. Step 5: Solve for x
    x = 388,051,478,347.77/692,424.46
  6. Step 6: Final answer
    x = 560,424.28

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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.