Home / 877,782.46-1,211,005.95-648,889.32

Finding the Fourth Proportional to 877,782.46, 1,211,005.95 and 648,889.32

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Solution

The fourth proportional to 877,782.46, 1,211,005.95 and 648,889.32 is: 895,220.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,782.46 : 1,211,005.95 = 648,889.32 : x
  2. Step 2: Convert to fraction form
    877,782.46/1,211,005.95 = 648,889.32/x
  3. Step 3: Cross multiply
    877,782.46x = 1,211,005.95 × 648,889.32
  4. Step 4: Simplify right side
    877,782.46x = 785,808,827,411.45
  5. Step 5: Solve for x
    x = 785,808,827,411.45/877,782.46
  6. Step 6: Final answer
    x = 895,220.47

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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.