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Finding the Fourth Proportional to 692,784.01, 955,769.92 and 402,346.14

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Solution

The fourth proportional to 692,784.01, 955,769.92 and 402,346.14 is: 555,079.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,784.01 : 955,769.92 = 402,346.14 : x
  2. Step 2: Convert to fraction form
    692,784.01/955,769.92 = 402,346.14/x
  3. Step 3: Cross multiply
    692,784.01x = 955,769.92 × 402,346.14
  4. Step 4: Simplify right side
    692,784.01x = 384,550,338,040.11
  5. Step 5: Solve for x
    x = 384,550,338,040.11/692,784.01
  6. Step 6: Final answer
    x = 555,079.70

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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.