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Finding the Fourth Proportional to 1,036.86, 1,430.81 and 588.75

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Solution

The fourth proportional to 1,036.86, 1,430.81 and 588.75 is: 812.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,036.86 : 1,430.81 = 588.75 : x
  2. Step 2: Convert to fraction form
    1,036.86/1,430.81 = 588.75/x
  3. Step 3: Cross multiply
    1,036.86x = 1,430.81 × 588.75
  4. Step 4: Simplify right side
    1,036.86x = 842,386.44
  5. Step 5: Solve for x
    x = 842,386.44/1,036.86
  6. Step 6: Final answer
    x = 812.44

Related Problems

Find fourth proportional to 518.43, 715.40 and 294.38
Half scale
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Double scale
Find fourth proportional to 1,037.86, 1,432.18 and 589.75
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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.