Home / 915,689.07-1,263,730.82-533,707.65

Finding the Fourth Proportional to 915,689.07, 1,263,730.82 and 533,707.65

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Solution

The fourth proportional to 915,689.07, 1,263,730.82 and 533,707.65 is: 736,563.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,689.07 : 1,263,730.82 = 533,707.65 : x
  2. Step 2: Convert to fraction form
    915,689.07/1,263,730.82 = 533,707.65/x
  3. Step 3: Cross multiply
    915,689.07x = 1,263,730.82 × 533,707.65
  4. Step 4: Simplify right side
    915,689.07x = 674,462,803,506.24
  5. Step 5: Solve for x
    x = 674,462,803,506.24/915,689.07
  6. Step 6: Final answer
    x = 736,563.13

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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.