Home / 514,075.23-709,433.24-287,720.19

Finding the Fourth Proportional to 514,075.23, 709,433.24 and 287,720.19

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Solution

The fourth proportional to 514,075.23, 709,433.24 and 287,720.19 is: 397,059.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,075.23 : 709,433.24 = 287,720.19 : x
  2. Step 2: Convert to fraction form
    514,075.23/709,433.24 = 287,720.19/x
  3. Step 3: Cross multiply
    514,075.23x = 709,433.24 × 287,720.19
  4. Step 4: Simplify right side
    514,075.23x = 204,118,265,166.52
  5. Step 5: Solve for x
    x = 204,118,265,166.52/514,075.23
  6. Step 6: Final answer
    x = 397,059.13

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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.