Home / 387,174.02-534,368.58-289,547.03

Finding the Fourth Proportional to 387,174.02, 534,368.58 and 289,547.03

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Solution

The fourth proportional to 387,174.02, 534,368.58 and 289,547.03 is: 399,626.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,174.02 : 534,368.58 = 289,547.03 : x
  2. Step 2: Convert to fraction form
    387,174.02/534,368.58 = 289,547.03/x
  3. Step 3: Cross multiply
    387,174.02x = 534,368.58 × 289,547.03
  4. Step 4: Simplify right side
    387,174.02x = 154,724,832,592.48
  5. Step 5: Solve for x
    x = 154,724,832,592.48/387,174.02
  6. Step 6: Final answer
    x = 399,626.07

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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.