Home / 727,569.40-1,091,354.10-686,235.10

Finding the Fourth Proportional to 727,569.40, 1,091,354.10 and 686,235.10

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Solution

The fourth proportional to 727,569.40, 1,091,354.10 and 686,235.10 is: 1,029,352.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,569.40 : 1,091,354.10 = 686,235.10 : x
  2. Step 2: Convert to fraction form
    727,569.40/1,091,354.10 = 686,235.10/x
  3. Step 3: Cross multiply
    727,569.40x = 1,091,354.10 × 686,235.10
  4. Step 4: Simplify right side
    727,569.40x = 748,925,489,948.91
  5. Step 5: Solve for x
    x = 748,925,489,948.91/727,569.40
  6. Step 6: Final answer
    x = 1,029,352.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.