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Finding the Fourth Proportional to 886,803.95, 1,223,400.71 and 542,656.42

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Solution

The fourth proportional to 886,803.95, 1,223,400.71 and 542,656.42 is: 748,627.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,803.95 : 1,223,400.71 = 542,656.42 : x
  2. Step 2: Convert to fraction form
    886,803.95/1,223,400.71 = 542,656.42/x
  3. Step 3: Cross multiply
    886,803.95x = 1,223,400.71 × 542,656.42
  4. Step 4: Simplify right side
    886,803.95x = 663,886,249,514.06
  5. Step 5: Solve for x
    x = 663,886,249,514.06/886,803.95
  6. Step 6: Final answer
    x = 748,627.98

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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.