Home / 879,239.16-1,213,397.28-556,831.80

Finding the Fourth Proportional to 879,239.16, 1,213,397.28 and 556,831.80

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Solution

The fourth proportional to 879,239.16, 1,213,397.28 and 556,831.80 is: 768,457.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,239.16 : 1,213,397.28 = 556,831.80 : x
  2. Step 2: Convert to fraction form
    879,239.16/1,213,397.28 = 556,831.80/x
  3. Step 3: Cross multiply
    879,239.16x = 1,213,397.28 × 556,831.80
  4. Step 4: Simplify right side
    879,239.16x = 675,658,191,537.50
  5. Step 5: Solve for x
    x = 675,658,191,537.50/879,239.16
  6. Step 6: Final answer
    x = 768,457.80

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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.