Home / 388,526.32-536,158.17-216,444.05

Finding the Fourth Proportional to 388,526.32, 536,158.17 and 216,444.05

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Solution

The fourth proportional to 388,526.32, 536,158.17 and 216,444.05 is: 298,688.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,526.32 : 536,158.17 = 216,444.05 : x
  2. Step 2: Convert to fraction form
    388,526.32/536,158.17 = 216,444.05/x
  3. Step 3: Cross multiply
    388,526.32x = 536,158.17 × 216,444.05
  4. Step 4: Simplify right side
    388,526.32x = 116,048,245,085.19
  5. Step 5: Solve for x
    x = 116,048,245,085.19/388,526.32
  6. Step 6: Final answer
    x = 298,688.25

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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.