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Finding the Fourth Proportional to 501,546.07, 692,133.47 and 286,690.76

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Solution

The fourth proportional to 501,546.07, 692,133.47 and 286,690.76 is: 395,633.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,546.07 : 692,133.47 = 286,690.76 : x
  2. Step 2: Convert to fraction form
    501,546.07/692,133.47 = 286,690.76/x
  3. Step 3: Cross multiply
    501,546.07x = 692,133.47 × 286,690.76
  4. Step 4: Simplify right side
    501,546.07x = 198,428,271,907.71
  5. Step 5: Solve for x
    x = 198,428,271,907.71/501,546.07
  6. Step 6: Final answer
    x = 395,633.19

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Half scale
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Double scale
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Similar ratio
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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.