Home / 877,354.61-1,210,541.87-509,613.24

Finding the Fourth Proportional to 877,354.61, 1,210,541.87 and 509,613.24

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Solution

The fourth proportional to 877,354.61, 1,210,541.87 and 509,613.24 is: 703,145.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,354.61 : 1,210,541.87 = 509,613.24 : x
  2. Step 2: Convert to fraction form
    877,354.61/1,210,541.87 = 509,613.24/x
  3. Step 3: Cross multiply
    877,354.61x = 1,210,541.87 × 509,613.24
  4. Step 4: Simplify right side
    877,354.61x = 616,908,162,366.38
  5. Step 5: Solve for x
    x = 616,908,162,366.38/877,354.61
  6. Step 6: Final answer
    x = 703,145.75

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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.