Home / 912,923.40-1,369,385.10-239,003.40

Finding the Fourth Proportional to 912,923.40, 1,369,385.10 and 239,003.40

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Solution

The fourth proportional to 912,923.40, 1,369,385.10 and 239,003.40 is: 358,505.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,923.40 : 1,369,385.10 = 239,003.40 : x
  2. Step 2: Convert to fraction form
    912,923.40/1,369,385.10 = 239,003.40/x
  3. Step 3: Cross multiply
    912,923.40x = 1,369,385.10 × 239,003.40
  4. Step 4: Simplify right side
    912,923.40x = 327,287,694,809.34
  5. Step 5: Solve for x
    x = 327,287,694,809.34/912,923.40
  6. Step 6: Final answer
    x = 358,505.10

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.