Home / 615,623.60-923,435.40-542,140.40

Finding the Fourth Proportional to 615,623.60, 923,435.40 and 542,140.40

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Solution

The fourth proportional to 615,623.60, 923,435.40 and 542,140.40 is: 813,210.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,623.60 : 923,435.40 = 542,140.40 : x
  2. Step 2: Convert to fraction form
    615,623.60/923,435.40 = 542,140.40/x
  3. Step 3: Cross multiply
    615,623.60x = 923,435.40 × 542,140.40
  4. Step 4: Simplify right side
    615,623.60x = 500,631,637,130.16
  5. Step 5: Solve for x
    x = 500,631,637,130.16/615,623.60
  6. Step 6: Final answer
    x = 813,210.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.