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Finding the Fourth Proportional to 1,036.76, 1,430.64 and 594.72

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Solution

The fourth proportional to 1,036.76, 1,430.64 and 594.72 is: 820.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,036.76 : 1,430.64 = 594.72 : x
  2. Step 2: Convert to fraction form
    1,036.76/1,430.64 = 594.72/x
  3. Step 3: Cross multiply
    1,036.76x = 1,430.64 × 594.72
  4. Step 4: Simplify right side
    1,036.76x = 850,830.22
  5. Step 5: Solve for x
    x = 850,830.22/1,036.76
  6. Step 6: Final answer
    x = 820.66

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Double scale
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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.