Home / 917,366.10-1,376,049.15-637,430.10

Finding the Fourth Proportional to 917,366.10, 1,376,049.15 and 637,430.10

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Solution

The fourth proportional to 917,366.10, 1,376,049.15 and 637,430.10 is: 956,145.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,366.10 : 1,376,049.15 = 637,430.10 : x
  2. Step 2: Convert to fraction form
    917,366.10/1,376,049.15 = 637,430.10/x
  3. Step 3: Cross multiply
    917,366.10x = 1,376,049.15 × 637,430.10
  4. Step 4: Simplify right side
    917,366.10x = 877,135,147,289.42
  5. Step 5: Solve for x
    x = 877,135,147,289.42/917,366.10
  6. Step 6: Final answer
    x = 956,145.15

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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.