Home / 528,621.61-729,498.54-286,904.19

Finding the Fourth Proportional to 528,621.61, 729,498.54 and 286,904.19

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Solution

The fourth proportional to 528,621.61, 729,498.54 and 286,904.19 is: 395,928.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,621.61 : 729,498.54 = 286,904.19 : x
  2. Step 2: Convert to fraction form
    528,621.61/729,498.54 = 286,904.19/x
  3. Step 3: Cross multiply
    528,621.61x = 729,498.54 × 286,904.19
  4. Step 4: Simplify right side
    528,621.61x = 209,296,184,794.65
  5. Step 5: Solve for x
    x = 209,296,184,794.65/528,621.61
  6. Step 6: Final answer
    x = 395,928.17

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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.