Home / 1,189,011.02-1,783,702.44-390,110.86

Finding the Fourth Proportional to 1,189,011.02, 1,783,702.44 and 390,110.86

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Solution

The fourth proportional to 1,189,011.02, 1,783,702.44 and 390,110.86 is: 585,227.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,011.02 : 1,783,702.44 = 390,110.86 : x
  2. Step 2: Convert to fraction form
    1,189,011.02/1,783,702.44 = 390,110.86/x
  3. Step 3: Cross multiply
    1,189,011.02x = 1,783,702.44 × 390,110.86
  4. Step 4: Simplify right side
    1,189,011.02x = 695,841,692,852.50
  5. Step 5: Solve for x
    x = 695,841,692,852.50/1,189,011.02
  6. Step 6: Final answer
    x = 585,227.29

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Double scale
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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.