Home / 912,844.10-1,369,266.15-407,404.10

Finding the Fourth Proportional to 912,844.10, 1,369,266.15 and 407,404.10

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Solution

The fourth proportional to 912,844.10, 1,369,266.15 and 407,404.10 is: 611,106.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,844.10 : 1,369,266.15 = 407,404.10 : x
  2. Step 2: Convert to fraction form
    912,844.10/1,369,266.15 = 407,404.10/x
  3. Step 3: Cross multiply
    912,844.10x = 1,369,266.15 × 407,404.10
  4. Step 4: Simplify right side
    912,844.10x = 557,844,643,501.22
  5. Step 5: Solve for x
    x = 557,844,643,501.22/912,844.10
  6. Step 6: Final answer
    x = 611,106.15

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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.