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Finding the Fourth Proportional to 532,119.18, 734,339.86 and 290,417.16

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Solution

The fourth proportional to 532,119.18, 734,339.86 and 290,417.16 is: 400,784.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,119.18 : 734,339.86 = 290,417.16 : x
  2. Step 2: Convert to fraction form
    532,119.18/734,339.86 = 290,417.16/x
  3. Step 3: Cross multiply
    532,119.18x = 734,339.86 × 290,417.16
  4. Step 4: Simplify right side
    532,119.18x = 213,264,896,616.00
  5. Step 5: Solve for x
    x = 213,264,896,616.00/532,119.18
  6. Step 6: Final answer
    x = 400,784.08

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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.