Home / 514,077.09-709,065.78-358,769.10

Finding the Fourth Proportional to 514,077.09, 709,065.78 and 358,769.10

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Solution

The fourth proportional to 514,077.09, 709,065.78 and 358,769.10 is: 494,849.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,077.09 : 709,065.78 = 358,769.10 : x
  2. Step 2: Convert to fraction form
    514,077.09/709,065.78 = 358,769.10/x
  3. Step 3: Cross multiply
    514,077.09x = 709,065.78 × 358,769.10
  4. Step 4: Simplify right side
    514,077.09x = 254,390,891,731.40
  5. Step 5: Solve for x
    x = 254,390,891,731.40/514,077.09
  6. Step 6: Final answer
    x = 494,849.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.