Home / 936,412.70-1,292,245.36-506,700.40

Finding the Fourth Proportional to 936,412.70, 1,292,245.36 and 506,700.40

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Solution

The fourth proportional to 936,412.70, 1,292,245.36 and 506,700.40 is: 699,244.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    936,412.70 : 1,292,245.36 = 506,700.40 : x
  2. Step 2: Convert to fraction form
    936,412.70/1,292,245.36 = 506,700.40/x
  3. Step 3: Cross multiply
    936,412.70x = 1,292,245.36 × 506,700.40
  4. Step 4: Simplify right side
    936,412.70x = 654,781,240,810.14
  5. Step 5: Solve for x
    x = 654,781,240,810.14/936,412.70
  6. Step 6: Final answer
    x = 699,244.30

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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.