Home / 651,623.40-977,435.10-494,159.40

Finding the Fourth Proportional to 651,623.40, 977,435.10 and 494,159.40

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Solution

The fourth proportional to 651,623.40, 977,435.10 and 494,159.40 is: 741,239.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,623.40 : 977,435.10 = 494,159.40 : x
  2. Step 2: Convert to fraction form
    651,623.40/977,435.10 = 494,159.40/x
  3. Step 3: Cross multiply
    651,623.40x = 977,435.10 × 494,159.40
  4. Step 4: Simplify right side
    651,623.40x = 483,008,742,554.94
  5. Step 5: Solve for x
    x = 483,008,742,554.94/651,623.40
  6. Step 6: Final answer
    x = 741,239.10

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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.