Home / 910,677.90-1,256,728.71-502,779.66

Finding the Fourth Proportional to 910,677.90, 1,256,728.71 and 502,779.66

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Solution

The fourth proportional to 910,677.90, 1,256,728.71 and 502,779.66 is: 693,832.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,677.90 : 1,256,728.71 = 502,779.66 : x
  2. Step 2: Convert to fraction form
    910,677.90/1,256,728.71 = 502,779.66/x
  3. Step 3: Cross multiply
    910,677.90x = 1,256,728.71 × 502,779.66
  4. Step 4: Simplify right side
    910,677.90x = 631,857,633,526.04
  5. Step 5: Solve for x
    x = 631,857,633,526.04/910,677.90
  6. Step 6: Final answer
    x = 693,832.18

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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.